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Sustainability analysis in agriculture using Linguistic Pythagorean Neutrosophic number through Einstein aggregation operators

Author: S. Annadurai; R. Sundareswaran; M. Shanmugapriya; M. Mohanalakshmi
Publisher: Zenodo
DOI: 10.5281/zenodo.17335152
Source: https://zenodo.org/records/17335152/files/2SustainabilityAnalysis.pdf
Uni e si y o New Mexico
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s
Sus ainabili y analysis in ag icul u e using Linguis ic Py hago ean
Neu osophic numbe h ough Eins ein agg ega ion ope a o s
S. Annadu ai1, R. Sunda eswa an2, M. Shanmugap iya3, M. Mohanalakshmi4
1Depa men o Ma hema ics, S . Joseph's College o Enginee ing, India.
2,3Depa men o Ma hema ics, S i Si asub amaniya Nada College o Enginee ing, India.
4Depa men o Chemical Enginee ing, S i Si asub amaniya Nada College o Enginee ing, India.
Abs ac :
The Linguis ic Py hago ean Neu osophic (LPN) se is a powe ul amewo k o handling
unce ain y in assessmen s by in eg a ing linguis ic a iables wi h Py hago ean Neu osophic
numbe s (PNNs). In his s udy, we de ine new undamen al ope a ions on Linguis ic Py hago ean
Neu osophic Numbe s (LPNNs) based on Eins ein ope a ions and examine hei in e ela ionships.
To add ess he challenges o LPNN usion, we p opose se e al LPN agg ega ion ope a o s, namely
he LPN Eins ein Weigh ed A e aging (LPNEWA), and LPN Eins ein O de Weigh ed A e aging
(LPNEOWG) ope a o s, and in es iga e hei key cha ac e is ics. To demons a e he p oposed
me hodologyโ€™s use ulness, we p esen an illus a i e case s udy in sus ainabili y ag icul u e. This
case s udy highligh s he p ac icali y and e ec i eness o he p oposed decision-making model.
Keywo ds: Linguis ic Py hago ean Neu osophic se ; LPN Eins ein Weigh ed A e age Ope a o , LPN Eins ein
O de Weigh ed A e age Ope a o , Mul i-C i e ia Decision Making
i. In oduc ion
In 1998, Sma andache [1] in oduced he concep o Neu osophic se s (๐‘๐‘ ๐‘’๐‘ก), as an ex ension o
in ui ionis ic uzzy se s (๐ผ๐น๐‘ ๐‘’๐‘ก), which p o ides a mo e comp ehensi e amewo k o handling
unce ain y. Unlike ๐ผ๐น๐‘ ๐‘’๐‘ก๐‘ , hose ha a e cha ac e ized by deg ees o u h and alsi y, ๐‘๐‘ ๐‘’๐‘ก
inco po a es an addi ional dimension o unce ain y, enabling decision-make s o e alua e p oblems
in e ms o independen u h (T), inde e minacy (I), and alsi y (F) alues. This independence makes
๐‘๐‘ ๐‘’๐‘ก a mo e powe ul and gene alized ma hema ical amewo k o ep esen ing and p ocessing
ague o imp ecise in o ma ion. Since i s incep ion, esea che s ha e ex ensi ely s udied [2-5] bo h
he heo e ical ounda ions and applica ions o ๐‘๐‘ ๐‘’๐‘ก๐‘ . Linguis ic a iables (๐ฟ๐‘‰๐‘ ) a e used o exp ess
quali a i e e alua ions in complex decision-making. Zadeh [6] concep o ๐ฟ๐‘‰๐‘  o p e e ence
in o ma ion in uzzy easoning gained b oad esea ch in e es and led o u he ad ancemen s in
decision-making (DM) science. Fang and Ye [7] i s in oduced linguis ic neu osophic numbe s
(๐ฟ๐‘๐‘๐‘ ), inco po a ing linguis ic alues o u h, inde e minacy, and alsi y, and enabling he use o
Neu osophic Se s and Sys ems, Vol. 94, 2025
13
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s
all h ee kinds o linguis ic in o ma ion simul aneously. They u he de eloped sco e and accu acy
unc ions, along wi h agg ega ion ope a o s, o e ec i e decision-making. Recen ly, many
esea che s [8-12] ha e been explo ing he applica ions, enhancemen s, and in eg a ion o ๐ฟ๐‘๐‘๐‘  in o
a ious decision-making amewo ks and uzzy logic sys ems.
Zhao [13] in oduced gene alized agg ega ion ope a o s based on ๐ผ๐น๐‘ ๐‘’๐‘ก๐‘  and showed ha he
a i hme ic agg ega ion (AA) and geome y agg ega ion (GA) a e special cases o hese ope a o s.
These ope a o s a e de i ed using he algeb aic sum and p oduc o numbe se s, co esponding o
he A chimedes -cono m and -no m o de ining union and in e sec ion ope a ions. Wang and Liu
[14] de eloped se e al ๐ผ๐น๐ธ๐ด ope a o s and demons a ed ha he Eins ein agg ega ion ope a o
o e s be e esul s compa ed o he AA ope a o . Zhao and Wei [15] in oduced he ๐ผ๐น๐ธ๐ป๐ด and
๐ผ๐น๐ธ๐ป๐บ ope a o s. Guo e al. [16] applied he Eins ein ope a ions o hesi an uzzy se s. La e Li e al.
[17] in oduced he gene alized Neu osophic numbe o he Eins ein agg ega ion ope a o .
Recen ly, nume ous esea che s [18-20] ha e been explo ing he Neu osophic Eins ein ope a o and
i s applica ion in a ious decision-making p ocesses. When combined wi h ๐ฟ๐‘๐‘๐‘  , he Eins ein
ope a o s enable e ec i e agg ega ion o linguis ic alues in ol ing u h, inde e minacy, and alsi y
p obabili ies. This in eg a ion enhances decision-making by managing unce ain y and o e ing
smoo h agg ega ion me hods, such as weigh ed o geome ic a e ages. Recen ly, many esea che s
[21-23] ha e ocused on he use o he Eins ein ope a o wi h ๐ฟ๐‘๐‘๐‘  o manage unce ain o ague
da a in eal-wo ld decision-making se ings.
1.2 Mo i a ion
Agg ega ion ope a o s a e i al in decision suppo sys ems o consolida ing in o ma ion and
anking al e na i es. While adi ional algeb aic T-no m and S-no m ope a o s lack lexibili y and
obus ness, Eins ein T-no m and S-no m p o ide a supe io al e na i e wi h smoo h app oxima ion
p ope ies. To enhance decision suppo sys ems, we de elop Linguis ic Py hago ean Neu osophic
Eins ein Ope a o s (LPNEO), enabling mo e e ec i e agg ega ion o unce ain in o ma ion. In
sus ainable ag icul u e, decision-making is o en challenged by imp ecise da a, con lic ing expe
opinions, and dynamic en i onmen al condi ions. Tasks such as selec ing app op ia e c op a ie ies,
op imizing esou ce alloca ion and in as uc u e, o assessing he en i onmen al impac o a ming
p ac ices ypically in ol e unce ain, incomple e, o ambiguous in o ma ion. By in eg a ing LPNEO,
hese challenges a e e ec i ely add essed, enabling mo e accu a e handling o unce ain y and
agueness in ag icul u al decision p ocesses.
1.3 No el y
โžข This s udy ex ends he Eins ein T-no m and T-cono m o LPNEO, imp o ing hei capabili y
o manage unce ain y and imp ecision mo e e ec i ely.
โžข Es ablish a Mul i-A ibu e G oup Decision-Making (MAGDM) amewo k based on he
newly in oduced Eins ein ope a o s, p o iding a mo e e icien and accu a e app oach o
decision-making in unce ain en i onmen s.
1.4 Objec i e
The key esea ch objec i es and con ibu ions o his s udy a e:
Neu osophic Se s and Sys ems, Vol. 94, 2025
14
โžข Ex ending he Eins ein T-no m and T-cono m o LPNEO o enhance lexibili y and
obus ness.
โžข In oducing a ious LPNEOs, including LPN Eins ein a e aging ope a o s, LPN Eins ein
geome ic ope a o s, and LPN Eins ein hyb id ope a o s, while explo ing hei undamen al
p ope ies.
โžข De eloping a no el decision-making (DM) me hod based on he p oposed ope a o s o
e ec i ely add ess MAGDM p oblems in eal-wo ld scena ios.
2 P elimina ies
In his sec ion, some undamen al concep s ela ed o LPNS ha e been p esen ed.
De ini ion: 1 Neu osophic se (๐‘๐‘ ๐‘’๐‘ก): [1] Le ฮ˜ be a uni e se se . A ๐‘๐‘ ๐‘’๐‘ก, ๐ด๓ฐ†ป on ฮ˜ is de ined as ๐ด๓ฐ†ป=
{โŒฉ๐‘ฅ,๐‘‡๐ด๏จ(๐‘ฅ),๐ผ๐ด๏จ(๐‘ฅ),๐น๐ด๏จ(๐‘ฅ)โŒช:๐‘ฅโˆˆฮ˜}, whe e ๐‘‡๐ด๏จ(๐‘ฅ):ฮ˜โ†’โˆ’]0,1[+ is said o be he TMF, which ep esen s he
deg ee o con idence, ๐ผ๐ด๏จ(๐‘ฅ):ฮ˜โ†’โˆ’]0,1[+is said o be he IMF, which ep esen s he deg ee o
unce ain y, and ๐น๐ด๏จ(๐‘ฅ):ฮ˜โ†’โˆ’]0,1[+ is said o be he FMF, which ep esen s he deg ee o skep icism,
espec i ely o he elemen ๐‘ฅโˆˆฮ˜ in ๐ด๐‘
๏ช , such ha 0โ‰ค๐‘‡๐ด๏จ(๐‘ฅ)+๐ผ๐ด๏จ(๐‘ฅ)+๐น๐ด๏จ(๐‘ฅ)โ‰ค3.
De ini ion: 2 Py hago ean Neu osophic se s (๐‘ƒ๐‘๐‘ ๐‘’๐‘ก): [2] Le ฮ˜ be a uni e se se . A ๐‘ƒ๐‘๐‘ ๐‘’๐‘ก ๐ด๓ฐ†ป on ฮ˜ is
de ined as ๐ด๓ฐ†ป={โŒฉ๐‘ฅ,๐‘‡๐ด๏จ(๐‘ฅ),๐ผ๐ด๏จ(๐‘ฅ),๐น๐ด๏จ(๐‘ฅ)โŒช:๐‘ฅโˆˆฮ˜}, such ha ( ๐‘‡๐ด๏จ(๐‘ฅ))2+( ๐ผ๐ด๏จ(๐‘ฅ))2+( ๐น๐ด๏จ(๐‘ฅ))2โ‰ค2, whe e
๐‘‡๐ด๏จ(๐‘ฅ):ฮ˜โ†’โˆ’]0,1[+ is he TMF, ๐ผ๐ด๏จ(๐‘ฅ):ฮ˜โ†’โˆ’]0,1[+is he IMF, and ๐น๐ด๏จ(๐‘ฅ):ฮ˜โ†’โˆ’]0,1[+ is he FMF.
De ini ion: 3 Linguis ic Neu osophic Se (๐ฟ๐‘๐‘ ๐‘’๐‘ก): [3] Le ฮ˜ be a uni e se se . A ๐ฟ๐‘๐‘ ๐‘’๐‘ก in ฮ˜ is de ined
as ๐ด๓ฐ†ป={โŒฉ๐‘ฅ,๐‘‡๐ด๏จ(๐‘ฅ),๐ผ๐ด๏จ(๐‘ฅ),๐น๐ด๏จ(๐‘ฅ)โŒช:๐‘ฅโˆˆฮ˜}, whe e ๐‘‡๐ด๏จ(๐‘ฅ):ฮ˜โ†’โˆ’]0,1[+ is he LTMF, ๐ผ๐ด๏จ(๐‘ฅ):ฮ˜โ†’โˆ’]0,1[+is he
LIMF, and ๐น๐ด๏จ(๐‘ฅ):ฮ˜โ†’โˆ’]0,1[+ is he LFMF. Each membe ship unc ions ๐‘‡๐ด๏จ(๐‘ฅ),๐ผ๐ด๏จ(๐‘ฅ),๐‘Ž๐‘›๐‘‘ ๐น๐ด๏จ(๐‘ฅ) akes
linguis ic alues om a p ede ined linguis ic e m se ๐‘†.๏ฉ
De ini ion: 4 Linguis ic Py hago ean Neu osophic Se (๐ฟ๐‘ƒ๐‘๐‘ ๐‘’๐‘ก): [24] Le ฮ˜ be a uni e se se . A ๐ฟ๐‘ƒ๐‘๐‘ ๐‘’๐‘ก
in ฮ˜ is de ined as ๐ด๓ฐ†ป={โŒฉ๐‘ฅ,๐‘‡๐ด๏จ(๐‘ฅ),๐ผ๐ด๏จ(๐‘ฅ),๐น๐ด๏จ(๐‘ฅ)โŒช:๐‘ฅโˆˆฮ˜}, such ha ( ๐‘‡๐ด๏จ(๐‘ฅ))2+( ๐ผ๐ด๏จ(๐‘ฅ))2+( ๐น๐ด๏จ(๐‘ฅ))2โ‰ค2,
whe e ๐‘‡๐ด๏จ(๐‘ฅ),๐ผ๐ด๏จ(๐‘ฅ),๐‘Ž๐‘›๐‘‘ ๐น๐ด๏จ(๐‘ฅ) a e ep esen ed using linguis ic e ms.
De ini ion: 5 Eins ein T-No m and S-No m [5]: Fo a bi a y wo eal numbe s (๐‘Ž,๏ฅ๐‘๏จ)โˆˆ[0.1], he
Eins ein sums and p oduc a e de ined as ollows:
๐‘†๓ฐ†ป๐ธ(๐‘Ž ๏ฅ,๐‘
๏ฉ)=๐‘Ž ๏ฅโŠ•๐œ–๐‘๏จ=๐‘Ž๏ค+๐‘๏จ
1+๐‘Žโˆ™
๏ฅ๐‘๏จ , ๐‘‡๏จ๐ธ(๐‘Ž ๏ฅ,๐‘
๏ฉ)=๐‘Ž ๏ฅโŠ—๐œ–๐‘๏จ=๐‘Žโˆ™
๏ฅ๐‘๏จ
1+(1โˆ’๐‘Ž๏ค)โˆ™(1โˆ’๐‘๏จ), โˆ€(๐‘Ž ๏ฅ,๐‘
๏ฉ)โˆˆ[0,1]2. ,
Ga g [24] in oduced new di e en unc ions o o de ing he al e na i es using he sco e unc ion
wi h an accu acy unc ion o build he compa ison app oach o LPNNs.
De ini ion: 6 Le ๐‘ฃ = (๐œ๐›ผ1,๐œ๐›ฝ1,๐œ๐›พ1) be a LPNN. Then he sco e unc ion ๐’ฏ and accu acy unc ion โ„‹
o ๐’œ a e de ined as: ๐”—(๐’œ) = ๐œโˆš๐‘˜2+๐›ผ12โˆ’๐›ฝ12โˆ’๐›พ12
3
โ„Œ(๐’œ) = ๐œโˆš๐›ผ12+๐›ฝ12โˆ’๐›พ12
Neu osophic Se s and Sys ems, Vol. 94, 2025
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s
15
Fo compa ing wo LPNNs A and B, he compa ison me hod is gi en as:
i. i ๐’ฏ(๐’œ)>๐’ฏ(โ„ฌ), hen ๐’œโ‰ปโ„ฌ;
ii. i ๐’ฏ(๐’œ)=๐’ฏ(โ„ฌ), hen
โžข i โ„‹(๐’œ)<โ„‹(โ„ฌ), hen ๐’œโ‰บ โ„ฌ;
โžข i โ„‹(๐’œ)=โ„‹(โ„ฌ), hen ๐’œโˆผ โ„ฌ.
3 Eins ein Ope a ion o Linguis ic Py hago ean Neu osophic Numbe s (LPNNs)
Linguis ic Py hago ean Neu osophic Numbe s (LPNNs) o e a no el and powe ul amewo k o
handling unce ain y, o e coming he limi a ions o adi ional linea app oaches. Unlike p e ious
wo ks ha ocus on uzzy o s anda d neu osophic numbe s, LPNNs combine he enhanced
lexibili y o Py hago ean logic wi h he in e p e abili y o linguis ic e ms. The applica ion o
Eins ein ope a ions, known o hei nonlinea , bounded, and smoo h agg ega ion beha io , u he
s eng hens he obus ness o his app oach in complex decision-making scena ios. In his sec ion, we
in oduce he Eins ein sum (โŠ•๐œ–) and Eins ein p oduc (โŠ—๐œ–) ope a ions wi hin he LPNN amewo k,
along wi h wo agg ega ion ope a o s such as LPN Eins ein Weigh ed A e age (LPNEWA) ope a o ,
and LPN Eins ein O de ed Weigh ed A e age (LPNEOWA) ope a o .
De ini ion: 7 Le ๐’ซ=(๐œ๐›ผ1,๐œ๐›ฝ1,๐œ๐›พ1) and ๐’ฌ=(๐œ๐›ผ2,๐œ๐›ฝ2,๐œ๐›พ2) be wo LPNNs and ๐œ†โ‰ฅ0, hen he Eins ein
ope a ion o โŠ•๐œ– and โŠ—๐œ– unde he LPNN a e de ined as ollows:
i. ๐’ซโŠ•๐œ–๐’ฌ=(๐œ๐‘กโˆš๐‘ก2(๐›ผ12+๐›ผ22)
๐‘ก4+๐›ผ12๐›ผ22,๐œ๐‘ก๐›ฝ1๐›ฝ2
โˆš๐‘ก4+(๐‘ก2โˆ’๐›ฝ12)(๐‘ก2โˆ’๐›ฝ22),๐œ๐‘ก๐›พ1๐›พ2
โˆš๐‘ก4+(๐‘ก2โˆ’๐›พ12)(๐‘ก2โˆ’๐›พ22));
ii. ๐’ซโŠ—๐œ–๐’ฌ=(๐œ๐‘ก๐›ผ1๐›ผ2
โˆš๐‘ก4+(๐‘ก2โˆ’๐›ผ12)(๐‘ก2โˆ’๐›ผ22),๐œ๐‘กโˆš๐‘ก2(๐›ฝ12+๐›ฝ22)
๐‘ก4+๐›ฝ12๐›ฝ22,๐œ๐‘กโˆš๐‘ก2(๐›พ12+๐›พ22)
๐‘ก4+๐›พ12๐›พ22);
iii. ๐œ†๐’ซ=
(
๐œ๐‘กโˆš(๐‘ก2+๐›ผ12)๐œ†โˆ’(๐‘ก2โˆ’๐›ผ12)๐œ†
(๐‘ก2+๐›ผ12)๐œ†+(๐‘ก2โˆ’๐›ผ12)๐œ†,๐œ๐‘กโˆš2 ๐›ฝ1๐œ†
โˆš(2๐‘ก2โˆ’๐›ฝ12)๐œ†+(๐›ฝ12)๐œ†,๐œ๐‘กโˆš2 ๐›พ1๐œ†
โˆš(2๐‘ก2โˆ’๐›พ12)๐œ†+(๐›พ12)๐œ†
)
;
i . ๐’ซ๐œ†=
(
๐œ๐‘กโˆš2 ๐›ผ1๐œ†
โˆš(2๐‘ก2โˆ’๐›ผ12)๐œ†+(๐›ผ12)๐œ†,๐œ๐‘กโˆš(๐‘ก2+๐›ฝ12)๐œ†โˆ’(๐‘ก2โˆ’๐›ฝ12)๐œ†
(๐‘ก2+๐›ฝ12)๐œ†+(๐‘ก2โˆ’๐›ฝ12)๐œ†,๐œ๐‘กโˆš(๐‘ก2+๐›พ12)๐œ†โˆ’(๐‘ก2โˆ’๐›พ12)๐œ†
(๐‘ก2+๐›พ12)๐œ†+(๐‘ก2โˆ’๐›พ12)๐œ†
)
.
Theo em: 1 Le ๐’ซ=(๐œ๐›ผ1,๐œ๐›ฝ1,๐œ๐›พ1) and ๐’ฌ=(๐œ๐›ผ2,๐œ๐›ฝ2,๐œ๐›พ2) be wo LPNNs and ๐œ†1,๐œ†2,๐œ†3โ‰ฅ0, hen he
Eins ein ope a ion o โŠ•๐œ– and โŠ—๐œ– ha e he ollowing pe o mance:
i. ๐’ซโŠ•๐œ–๐’ฌ=๐’ฌโŠ•๐œ–๐’ซ;
ii. ๐’ซโŠ—๐œ–๐’ฌ=๐’ฌโŠ—๐œ–๐’ซ;
iii. ๐œ†(๐’ซโŠ•๐œ–๐’ฌ)=๐œ†๐’ซโŠ•๐œ–๐œ†๐’ฌ;
i . (๐’ซโŠ—๐œ–๐’ฌ)๐œ†=๐’ซ๐œ†โŠ—๐œ–๐’ฌ๐œ†;
Neu osophic Se s and Sys ems, Vol. 94, 2025
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s
16
. (๐œ†1โŠ•๐œ– ๐œ†2)๐’ซ=๐œ†1๐’ซโŠ•๐œ–๐œ†2๐’ซ;
i. ๐’ซ๐œ†1โŠ—๐œ–๐’ซ๐œ†2=๐’ซ๐œ†1+๐œ†2.
P oo : Pe o mance (๐‘–) ๐‘Ž๐‘›๐‘‘ (๐‘–๐‘–) ๐‘Ž๐‘Ÿ๐‘’ ๐‘’๐‘Ž๐‘ ๐‘ฆ.๐‘†๐‘œ,๐‘คe p o es (๐‘–๐‘–๐‘–),๐‘Ž๐‘›๐‘‘ (๐‘ฃ).
Acco ding o De ini ion 5, we can ge
๐’ซโŠ•๐œ–๐’ฌ=(๐œ๐‘กโˆš๐‘ก2(๐›ผ12+๐›ผ22)
๐‘ก4+๐›ผ12๐›ผ22,๐œ๐‘ก๐›ฝ1๐›ฝ2
โˆš๐‘ก4+(๐‘ก2โˆ’๐›ฝ12)(๐‘ก2โˆ’๐›ฝ22),๐œ๐‘ก๐›พ1๐›พ2
โˆš๐‘ก4+(๐‘ก2โˆ’๐›พ12)(๐‘ก2โˆ’๐›พ22));
=(๐œ๐‘กโˆš(๐‘ก2+๐›ผ12)(๐‘ก2+๐›ผ22)โˆ’(๐‘ก2โˆ’๐›ผ12)(๐‘ก2โˆ’๐›ผ22)
(๐‘ก2+๐›ผ12)(๐‘ก2+๐›ผ22)+(๐‘ก2โˆ’๐›ผ12)(๐‘ก2โˆ’๐›ผ22),๐œ๐‘กโˆš2 ๐›ฝ12๐›ฝ22
๐›ฝ12๐›ฝ22+(2๐‘ก2โˆ’๐›ฝ12)(2๐‘ก2โˆ’๐›ฝ22),๐œ๐‘กโˆš2๐›พ12๐›พ22
๐›พ12๐›พ22+(2๐‘ก2โˆ’๐›พ12)(2๐‘ก2โˆ’๐›พ22));
=(๐œ๐‘กโˆš๐‘Ž๏คโˆ’๐‘๏จ
๐‘Ž๏ค+๐‘๏จ,๐œ๐‘กโˆš2๐‘๎Ÿ
๐‘๎Ÿ+๐‘‘๏จ,๐œ๐‘กโˆš2 ๐‘’๎Ÿ
๐‘’๎Ÿ+๐‘“๓ฐ†ป)
whe e ๐‘Ž๏ค=(๐‘ก2+๐›ผ12)(๐‘ก2+๐›ผ22),๐‘๏จ=(๐‘ก2โˆ’๐›ผ12)(๐‘ก2โˆ’๐›ผ22),๐‘๎Ÿ=๐›ฝ12๐›ฝ22,๐‘‘๓ฐ†ป=(2๐‘ก2โˆ’๐›ฝ12)(2๐‘ก2โˆ’๐›ฝ22),๐‘’๎Ÿ=
๐›พ12๐›พ22,๐‘“๓ฐ†ป=(2๐‘ก2โˆ’๐›พ12)(2๐‘ก2โˆ’๐›พ22).
๐’ซโŠ•๐œ–๐’ฌ=๐œ†(๐œ๐‘กโˆš๐‘Ž๏คโˆ’๐‘๏จ
๐‘Ž๏ค+๐‘๏จ,๐œ๐‘กโˆš2๐‘๎Ÿ
๐‘๎Ÿ+๐‘‘๏จ,๐œ๐‘กโˆš2 ๐‘’๎Ÿ
๐‘’๎Ÿ+๐‘“๓ฐ†ป)
=(๐œ๐‘กโˆš(๐‘ก2+๐›ผ12)๐œ†(๐‘ก2+๐›ผ22)๐œ†โˆ’(๐‘ก2โˆ’๐›ผ12)๐œ†(๐‘ก2โˆ’๐›ผ22)๐œ†
(๐‘ก2+๐›ผ12)๐œ†(๐‘ก2+๐›ผ22)๐œ†+(๐‘ก2โˆ’๐›ผ12)๐œ†(๐‘ก2โˆ’๐›ผ22)๐œ†,๐œ๐‘กโˆš2 (๐›ฝ12)๐œ†(๐›ฝ22)๐œ†
(๐›ฝ12)๐œ†(๐›ฝ22)๐œ†+(2๐‘ก2โˆ’๐›ฝ12)๐œ†(2๐‘ก2โˆ’๐›ฝ22)๐œ†,๐œ๐‘กโˆš2(๐›พ12)๐œ†(๐›พ22)๐œ†
(๐›พ12)๐œ†(๐›พ22)๐œ†+(2๐‘ก2โˆ’๐›พ12)๐œ†(2๐‘ก2โˆ’๐›พ22)๐œ†)
=(๐œ๐‘กโˆš ๐‘Ž
๏ฅ๐œ†โˆ’๐‘๏จ๐œ†
๐‘Ž๏ค๐œ†+๐‘๏จ๐œ†,๐œ๐‘กโˆš2๐‘๎Ÿ๐œ†
๐‘๎Ÿ๐œ†+๐‘‘
๏ฉ๐œ†,๐œ ๐‘กโˆš2 ๐‘’๎Ÿ๐œ†
๐‘’๎Ÿ๐œ†+๐‘“๓ฐ†ป๐œ†).
Now,
๐œ†๐’ซ=
(
๐œ๐‘กโˆš(๐‘ก2+๐›ผ12)๐œ†โˆ’(๐‘ก2โˆ’๐›ผ12)๐œ†
(๐‘ก2+๐›ผ12)๐œ†+(๐‘ก2โˆ’๐›ผ12)๐œ†,๐œ๐‘กโˆš2 (๐›ฝ12)๐œ†
(๐›ฝ12)๐œ†+(2๐‘ก2โˆ’๐›ฝ12)๐œ†,๐œ๐‘กโˆš2(๐›พ12)๐œ†
(๐›พ12)๐œ†+(2๐‘ก2โˆ’๐›พ12)๐œ†
)
=(๐œ๐‘กโˆš๐‘Ž๏ค1โˆ’๐‘๏จ1
๐‘Ž๏ค1+๐‘๏จ1,๐œ๐‘กโˆš2๐‘๎Ÿ1
๐‘๎Ÿ1+๐‘‘๏จ1,๐œ๐‘กโˆš2 ๐‘’๎Ÿ1
๐‘’๎Ÿ1+๐‘“๓ฐ†ป1)
and ๐œ†๐’ฌ=(๐œ๐‘กโˆš(๐‘ก2+๐›ผ22)๐œ†โˆ’(๐‘ก2โˆ’๐›ผ12)๐œ†
(๐‘ก2+๐›ผ22)๐œ†+(๐‘ก2โˆ’๐›ผ12)๐œ†,๐œ๐‘กโˆš2 (๐›ฝ22)๐œ†
(๐›ฝ22)๐œ†+(2๐‘ก2โˆ’๐›ฝ22)๐œ†,๐œ๐‘กโˆš2(๐›พ22)๐œ†
(๐›พ22)๐œ†+(2๐‘ก2โˆ’๐›พ22)๐œ†)=(๐œ๐‘กโˆš๐‘Ž๏ฅ2โˆ’๐‘๏ฉ2
๐‘Ž๏ฅ2+๐‘๏ฉ2,๐œ๐‘กโˆš2๐‘๏ค2
๐‘๏ค2+๐‘‘๏ฉ2,๐œ๐‘กโˆš2 ๐‘’๏ฅ2
๐‘’๏ฅ2+๐‘“๏ฉ2)
hen ๐œ†๐’ซโŠ•๐œ–๐œ†๐’ฌ=(๐œ๐‘กโˆš๐‘Ž๏ฅ1โˆ’๐‘๏ฉ1
๐‘Ž๏ฅ1+๐‘๏ฉ1,๐œ๐‘กโˆš2๐‘๏ค1
๐‘๏ค1+๐‘‘๏ฉ1,๐œ๐‘กโˆš2 ๐‘’๏ฅ1
๐‘’๏ฅ1+๐‘“๏ฉ1)โŠ•๐œ–(๐œ๐‘กโˆš๐‘Ž๏ฅ2โˆ’๐‘๏ฉ2
๐‘Ž๏ฅ2+๐‘๏ฉ2,๐œ๐‘กโˆš2๐‘๏ค2
๐‘๏ค2+๐‘‘๏ฉ2,๐œ๐‘กโˆš2 ๐‘’๏ฅ2
๐‘’๏ฅ2+๐‘“๏ฉ2)
=(๐œ๐‘กโˆš๐‘Ž๏ค1๐‘Ž๏ค2โˆ’๐‘๏จ1๐‘๏จ2
๐‘Ž๏ค1๐‘Ž๏ค2+๐‘๏จ1๐‘
๏ช2,๐œ๐‘กโˆš2๐‘๎Ÿ1๐‘๎Ÿ2
๐‘๎Ÿ1๐‘
๏ช2+๐‘‘๏จ1๐‘‘๏จ2,๐œ๐‘กโˆš2 ๐‘’๎Ÿ1๐‘’๎Ÿ2
๐‘’๎Ÿ1๐‘’๎Ÿ2+๐‘“๓ฐ†ป1๐‘“
๏ช2)
=(๐œ๐‘กโˆš(๐‘ก2+๐›ผ12)๐œ†(๐‘ก2+๐›ผ22)๐œ†โˆ’(๐‘ก2โˆ’๐›ผ12)๐œ†(๐‘ก2โˆ’๐›ผ22)๐œ†
(๐‘ก2+๐›ผ12)๐œ†(๐‘ก2+๐›ผ22)๐œ†+(๐‘ก2โˆ’๐›ผ12)๐œ†(๐‘ก2โˆ’๐›ผ22)๐œ†,๐œ๐‘กโˆš2 (๐›ฝ12)๐œ†(๐›ฝ22)๐œ†
(๐›ฝ12)๐œ†(๐›ฝ22)๐œ†+(2๐‘ก2โˆ’๐›ฝ12)๐œ†(2๐‘ก2โˆ’๐›ฝ22)๐œ†,๐œ๐‘กโˆš2(๐›พ12)๐œ†(๐›พ22)๐œ†
(๐›พ12)๐œ†(๐›พ22)๐œ†+(2๐‘ก2โˆ’๐›พ12)๐œ†(2๐‘ก2โˆ’๐›พ22)๐œ†)
Neu osophic Se s and Sys ems, Vol. 94, 2025
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s

17
whe e ๐‘Ž๏ฅ1=(๐‘ก2+๐›ผ12)๐œ†,๐‘Ž๏ฅ2=(๐‘ก2+๐›ผ22)๐œ†,๐‘๏ฉ1=(๐‘ก2โˆ’๐›ผ12)๐œ†,๐‘๏ฉ2=(๐‘ก2โˆ’๐›ผ22)๐œ†,๐‘๏ค1=(๐›ฝ12)๐œ†,๐‘๏ค2=(๐›ฝ22)๐œ†,๐‘‘๏ฉ1=(2๐‘ก2โˆ’
๐›ฝ12)๐œ†(2๐‘ก2โˆ’๐›ฝ22)๐œ†,๐‘‘๏ฉ2=(2๐‘ก2โˆ’๐›ฝ22)๐œ†,๐‘’๏ค1=(๐›พ12)๐œ†,๐‘’๏ค2=(๐›พ22)๐œ† ,๐‘“๏ฉ1=(2๐‘ก2โˆ’๐›พ12)๐œ†,๐‘“๏ฉ2=(2๐‘ก2โˆ’๐›พ22)๐œ†.
Hence, we can ob ain ๐œ†(๐’ซโŠ•๐œ–๐’ฌ)=๐œ†๐’ซโŠ•๐œ–๐œ†๐’ฌ.
Now, we p o e he pe o mance o (๐‘ฃ):
๐œ†1๐’ซ=
(
๐œ๐‘กโˆš(๐‘ก2+๐›ผ12)๐œ†1โˆ’(๐‘ก2โˆ’๐›ผ12)๐œ†1
(๐‘ก2+๐›ผ12)๐œ†1+(๐‘ก2โˆ’๐›ผ12)๐œ†1,๐œ๐‘กโˆš2 (๐›ฝ12)๐œ†1
(๐›ฝ12)๐œ†1+(2๐‘ก2โˆ’๐›ฝ12)๐œ†1,๐œ๐‘กโˆš2(๐›พ12)๐œ†1
(๐›พ12)๐œ†1+(2๐‘ก2โˆ’๐›พ12)๐œ†1
)
=(๐œ๐‘กโˆš๐‘Ž๏Œค1โˆ’๐‘๏Œค1
๐‘Ž๏Œค1+๐‘๏Œค1,๐œ๐‘กโˆš2๐‘๎ชง1
๐‘๎ชง1+๐‘‘๏Œค1,๐œ๐‘กโˆš2 ๐‘’๎ชง1
๐‘’๎ชง1+๐‘“๎ชง1),
๐œ†2๐’ซ=
(
๐œ๐‘กโˆš(๐‘ก2+๐›ผ12)๐œ†2โˆ’(๐‘ก2โˆ’๐›ผ12)๐œ†2
(๐‘ก2+๐›ผ12)๐œ†2+(๐‘ก2โˆ’๐›ผ12)๐œ†2,๐œ๐‘กโˆš2 (๐›ฝ12)๐œ†2
(๐›ฝ12)๐œ†2+(2๐‘ก2โˆ’๐›ฝ12)๐œ†2,๐œ๐‘กโˆš2(๐›พ12)๐œ†2
(๐›พ12)๐œ†2+(2๐‘ก2โˆ’๐›พ12)๐œ†2
)
=(๐œ๐‘กโˆš๐‘Ž๏Œค1โˆ’๐‘๏Œค1
๐‘Ž๏Œค1+๐‘๏Œค1,๐œ๐‘กโˆš2๐‘๎ชง1
๐‘๎ชง1+๐‘‘๏Œค1,๐œ๐‘กโˆš2 ๐‘’๎ชง1
๐‘’๎ชง1+๐‘“๎ชง1),
whe e ๐‘Ž๏Œฅ1=(๐‘ก2+๐›ผ12)๐œ†1,๐‘Ž๏Œฅ2=(๐‘ก2+๐›ผ22)๐œ†2,๐‘๏Œฅ1=(๐‘ก2โˆ’๐›ผ12)๐œ†1,๐‘๏Œฅ1=(๐‘ก2โˆ’๐›ผ22)๐œ†2,๐‘๏Œค1=(๐›ฝ12)๐œ†1,๐‘๏Œค2=(๐›ฝ22)๐œ†2,๐‘‘๏Œฅ1=
(2๐‘ก2โˆ’๐›ฝ12)๐œ†1,๐‘‘๏Œฅ2=(2๐‘ก2โˆ’๐›ฝ22)๐œ†2,๐‘’๏Œค1=(๐›พ12)๐œ†2,๐‘’๏Œค2=(๐›พ22)๐œ†1 ,๐‘“๏Œฅ1=(2๐‘ก2โˆ’๐›พ12)๐œ†1,๐‘“๏Œฅ2=(2๐‘ก2โˆ’๐›พ22)๐œ†2.
๐œ†1๐’ซโŠ•๐œ–๐œ†2๐’ซ=(๐œ๐‘กโˆš๐‘Ž๏Œค1โˆ’๐‘๏Œค1
๐‘Ž๏Œค1+๐‘๏Œค1,๐œ๐‘กโˆš2๐‘๎ชง1
๐‘๎ชง1+๐‘‘๏Œค1,๐œ๐‘กโˆš2 ๐‘’๎ชง1
๐‘’๎ชง1+๐‘“๎ชง1)โŠ•๐œ–(๐œ๐‘กโˆš๐‘Ž๏Œค1โˆ’๐‘๏Œค1
๐‘Ž๏Œค1+๐‘๏Œค1,๐œ๐‘กโˆš2๐‘๎ชง1
๐‘๎ชง1+๐‘‘๏Œค1,๐œ๐‘กโˆš2 ๐‘’๎ชง1
๐‘’๎ชง1+๐‘“๎ชง1)
=(๐œ๐‘กโˆš๐‘Ž๏Œค1๐‘Ž๏Œค2โˆ’๐‘๏Œค1๐‘๏Œค2
๐‘Ž๏Œค1๐‘Ž๏Œค2+๐‘๏Œค1๐‘๏Œค2,๐œ๐‘กโˆš2๐‘๎ชง1๐‘๎ชง1
๐‘๎ชง1๐‘๎ชง2+๐‘‘๏Œค1๐‘‘๏Œค2,๐œ๐‘กโˆš2 ๐‘’๎ชง1๐‘’๎ชง2
๐‘’๎ชง1๐‘’๎ชง2+๐‘“๎ชง1๐‘“๎ชง2)
=(๐œ๐‘กโˆš(๐‘ก2+๐›ผ12)๐œ†1+๐œ†2โˆ’(๐‘ก2โˆ’๐›ผ12)๐œ†1+๐œ†2
(๐‘ก2+๐›ผ12)๐œ†1+๐œ†2+(๐‘ก2โˆ’๐›ผ12)๐œ†1+๐œ†2,๐œ๐‘กโˆš2 (๐›ฝ12)๐œ†1+๐œ†2
(๐›ฝ12)๐œ†1+๐œ†2+(2๐‘ก2โˆ’๐›ฝ12)๐œ†1+๐œ†2,๐œ๐‘กโˆš2(๐›พ12)๐œ†1+๐œ†2
(๐›พ12)๐œ†1+๐œ†2+(2๐‘ก2โˆ’๐›พ12)๐œ†1+๐œ†2)=(๐œ†1โŠ•๐œ–๐œ†2)๐’ซ.
Hence, ๐œ†1๐’ซโŠ•๐œ–๐œ†2๐’ซ=(๐œ†1โŠ•๐œ–๐œ†2)๐’ซ.
4. LPN Eins ein Agg ega ion Ope a o s
4.1 LPN Eins ein weigh ed a e age (LPNEWA) ope a o
De ini ion: 8 Le LPNN ๐’ซ๐‘–=(๐œ๐›ผ1,๐œ๐›ฝ1,๐œ๐›พ1) in ๐œ, o ๐‘–=1,2,3,โ€ฆ๐‘›. Then he LPNEWA ope a o is
de ined as: LPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)=๐œ”1๐’ซ1โŠ•๐œ–๐œ”2๐’ซ2โŠ•๐œ–๐œ”3๐’ซ3โŠ•๐œ–โ€ฆโŠ•๐œ–๐œ”๐‘›๐’ซ๐‘›, wi h he weigh ec o
๐œ”=(๐œ”1,๐œ”2,๐œ”3,โ€ฆ๐œ”๐‘›)๐‘‡,โˆ‘๐œ”๐‘–=1
๐‘›๐‘–=1 and ๐œ”๐‘–โˆˆ[0,1].
Theo em: 2 Se a collec ion ๐’ซ๐‘–=(๐œ๐›ผ๐‘–,๐œ๐›ฝ๐‘–,๐œ๐›พ๐‘–) in ๐œ, o ๐‘–=1,2,3,โ€ฆ๐‘›, hen he usion alue gene a ed
by LPNEWA ope a o is also a LPNN and
LPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)=(๐œ๐‘กโˆšโˆ(๐‘ก2+๐›ผ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–โˆ’โˆ(๐‘ก2โˆ’๐›ผ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–
โˆ(๐‘ก2+๐›ผ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–+โˆ(๐‘ก2โˆ’๐›ผ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–,๐œ๐‘กโˆš2โˆ (๐›ฝ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1
โˆ (๐›ฝ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›ฝ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1 ,๐œ๐‘กโˆš2โˆ (๐›พ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1
โˆ (๐›พ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›พ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1 ) wi h
he weigh ec o ๐œ”=(๐œ”1,๐œ”2,๐œ”3,โ€ฆ๐œ”๐‘›)๐‘‡,โˆ‘๐œ”๐‘–=1
๐‘›๐‘–=1 and ๐œ”๐‘–โˆˆ[0,1].
P oo : When ๐‘›=2,LPNEWA(๐’ซ1,๐’ซ2)=๐œ”1๐’ซ1โŠ•๐œ–๐œ”2๐’ซ2.
By de ini ion 5 , we ge
Neu osophic Se s and Sys ems, Vol. 94, 2025
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s
18
๐œ”1๐’ซ1=(๐œ๐‘กโˆš(๐‘ก2+๐›ผ12)๐œ”1โˆ’(๐‘ก2โˆ’๐›ผ12)๐œ”1
(๐‘ก2+๐›ผ12)๐œ”1+(๐‘ก2โˆ’๐›ผ12)๐œ”1,๐œ๐‘กโˆš2 (๐›ฝ12)๐œ”1
(๐›ฝ12)๐œ”1+(2๐‘ก2โˆ’๐›ฝ12)๐œ”1,๐œ๐‘กโˆš2(๐›พ12)๐œ”1
(๐›พ12)๐œ”1+(2๐‘ก2โˆ’๐›พ12)๐œ”1),
๐œ”2๐’ซ2=(๐œ๐‘กโˆš(๐‘ก2+๐›ผ22)๐œ”2โˆ’(๐‘ก2โˆ’๐›ผ22)๐œ”2
(๐‘ก2+๐›ผ22)๐œ”2+(๐‘ก2โˆ’๐›ผ22)๐œ”2,๐œ๐‘กโˆš2 (๐›ฝ22)๐œ”2
(๐›ฝ22)๐œ”2+(2๐‘ก2โˆ’๐›ฝ22)๐œ”2,๐œ๐‘กโˆš2(๐›พ22)๐œ”2
(๐›พ22)๐œ”2+(2๐‘ก2โˆ’๐›พ22)๐œ”2).
๐œ”1๐’ซ1โŠ•๐œ–๐œ”2๐’ซ2
=
(
๐œ๐‘ก
โˆš
(๐‘ก2+๐›ผ12)๐œ”1โˆ’(๐‘ก2โˆ’๐›ผ12)๐œ”1
(๐‘ก2+๐›ผ12)๐œ”1+(๐‘ก2โˆ’๐›ผ12)๐œ”1+(๐‘ก2+๐›ผ22)๐œ”2โˆ’(๐‘ก2โˆ’๐›ผ22)๐œ”2
(๐‘ก2+๐›ผ22)๐œ”2+(๐‘ก2โˆ’๐›ผ22)๐œ”2
1+((๐‘ก2+๐›ผ12)๐œ”1โˆ’(๐‘ก2โˆ’๐›ผ12)๐œ”1
(๐‘ก2+๐›ผ12)๐œ”1+(๐‘ก2โˆ’๐›ผ12)๐œ”1)โˆ™((๐‘ก2+๐›ผ22)๐œ”2โˆ’(๐‘ก2โˆ’๐›ผ22)๐œ”2
(๐‘ก2+๐›ผ22)๐œ”2+(๐‘ก2โˆ’๐›ผ22)๐œ”2),๐œ๐‘ก
โˆš
(2 (๐›ฝ12)๐œ”1
(๐›ฝ12)๐œ”1+(2๐‘ก2โˆ’๐›ฝ12)๐œ”1)โˆ™( 2 (๐›ฝ22)๐œ”2
(๐›ฝ22)๐œ”2+(2๐‘ก2โˆ’๐›ฝ22)๐œ”2)
1+((๐‘ก2โˆ’2 (๐›ฝ12)๐œ”1
(๐›ฝ12)๐œ”1+(2๐‘ก2โˆ’๐›ฝ12)๐œ”1)โˆ™ 2 (๐›ฝ22)๐œ”2
(๐›ฝ22)๐œ”2+(2๐‘ก2โˆ’๐›ฝ22)๐œ”2),๐œ๐‘ก
โˆš
(2 (๐›พ12)๐œ”1
(๐›พ12)๐œ”1+(2๐‘ก2โˆ’๐›พ12)๐œ”1)โˆ™( 2 (๐›พ22)๐œ”2
(๐›พ22)๐œ”2+(2๐‘ก2โˆ’๐›พ22)๐œ”2)
1+((๐‘ก2โˆ’2 (๐›พ12)๐œ”1
(๐›พ12)๐œ”1+(2๐‘ก2โˆ’๐›พ12)๐œ”1)โˆ™ 2 (๐›พ22)๐œ”2
(๐›พ22)๐œ”2+(2๐‘ก2โˆ’๐›พ22)๐œ”2)
)
=
(
๐œ๐‘กโˆš((๐‘ก2+๐›ผ12)๐œ”1)โˆ™((๐‘ก2+๐›ผ22)๐œ”2)โˆ’((๐‘ก2+๐›ผ12)๐œ”1)โˆ™((๐‘ก2+๐›ผ22)๐œ”2)
((๐‘ก2+๐›ผ12)๐œ”1)โˆ™((๐‘ก2+๐›ผ22)๐œ”2)+((๐‘ก2+๐›ผ12)๐œ”1)โˆ™((๐‘ก2+๐›ผ22)๐œ”2),๐œ๐‘กโˆš2 (๐›ฝ12)๐œ”1โˆ™(๐›ฝ22)๐œ”2
(๐›ฝ12)๐œ”1(๐›ฝ22)๐œ”2+(2๐‘ก2โˆ’๐›ฝ12)๐œ”1โˆ™(2๐‘ก2โˆ’๐›ฝ22)๐œ”2,๐œ๐‘กโˆš2 (๐›พ12)๐œ”1โˆ™(๐›พ22)๐œ”2
(๐›พ12)๐œ”1(๐›ฝ๐›พ22)๐œ”2+(2๐‘ก2โˆ’๐›พ12)๐œ”1โˆ™(2๐‘ก2โˆ’๐›พ22)๐œ”2
)
Hence,LPNEWA(๐’ซ1,๐’ซ2)=๐œ”1๐’ซ1โŠ•๐œ–๐œ”2๐’ซ2,๐‘ฃ๐‘Ž๐‘™๐‘–๐‘‘ ๐‘“๐‘œ๐‘Ÿ ๐‘›=2.
When he consequence is alid o ๐‘›=๐‘˜, we ha e
LPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘˜)=
(
๐œ๐‘กโˆšโˆ(๐‘ก2+๐›ผ๐‘–2)
๐‘˜๐‘–=1 ๐œ”๐‘–โˆ’โˆ(๐‘ก2โˆ’๐›ผ๐‘–2)
๐‘˜๐‘–=1 ๐œ”๐‘–
โˆ(๐‘ก2+๐›ผ๐‘–2)
๐‘˜๐‘–=1 ๐œ”๐‘–+โˆ(๐‘ก2โˆ’๐›ผ๐‘–2)
๐‘˜๐‘–=1 ๐œ”๐‘–,๐œ๐‘กโˆš2โˆ (๐›ฝ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1
โˆ (๐›ฝ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›ฝ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1 ,๐œ๐‘กโˆš2โˆ (๐›พ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1
โˆ (๐›พ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›พ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1
)
.
When ๐‘›=๐‘˜+1, we ha e
LPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘˜+1)=LPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘˜โŠ•๐œ–๐œ”๐‘˜+1๐’ซ๐‘˜+1)
=
(
๐œ๐‘กโˆšโˆ(๐‘ก2+๐›ผ๐‘–2)
๐‘˜๐‘–=1 ๐œ”๐‘–โˆ’โˆ(๐‘ก2โˆ’๐›ผ๐‘–2)
๐‘˜๐‘–=1 ๐œ”๐‘–
โˆ(๐‘ก2+๐›ผ๐‘–2)
๐‘˜๐‘–=1 ๐œ”๐‘–+โˆ(๐‘ก2โˆ’๐›ผ๐‘–2)
๐‘˜๐‘–=1 ๐œ”๐‘–,๐œ๐‘กโˆš2โˆ (๐›ฝ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1
โˆ (๐›ฝ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›ฝ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1 ,๐œ๐‘กโˆš2โˆ (๐›พ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1
โˆ (๐›พ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›พ๐‘–2)๐œ”๐‘–
๐‘˜๐‘–=1
)
โŠ•๐œ–
(
๐œ๐‘กโˆš(๐‘ก2+๐›ผ๐‘˜+1
2)๐œ”๐‘˜+1โˆ’(๐‘ก2โˆ’๐›ผ๐‘˜+1
2)๐œ”๐‘˜+1
(๐‘ก2+๐›ผ๐‘˜+1
2)๐‘˜+1+(๐‘ก2โˆ’๐›ผ๐‘˜+1
2)๐œ”๐‘˜+1,๐œ๐‘กโˆš2 (๐›ฝ๐‘˜+1
2)๐œ”๐‘˜+1
(๐›ฝ๐‘˜+1
2)๐œ”๐‘˜+1+(2๐‘ก2โˆ’๐›ฝ๐‘˜+1
2)๐œ”๐‘˜+1,๐œ๐‘กโˆš2(๐›พ๐‘˜+1
2)๐œ”๐‘˜+1
(๐›พ๐‘˜+1
2)๐œ”๐‘˜+1+(2๐‘ก2โˆ’๐›พ๐‘˜+1
2)๐œ”๐‘˜+1
)
,
=
(
๐œ๐‘กโˆšโˆ(๐‘ก2+๐›ผ๐‘–2)
๐‘˜+1
๐‘–=1 ๐œ”๐‘–โˆ’โˆ(๐‘ก2โˆ’๐›ผ๐‘–2)
๐‘˜+1
๐‘–=1 ๐œ”๐‘–
โˆ(๐‘ก2+๐›ผ๐‘–2)
๐‘˜+1
๐‘–=1 ๐œ”๐‘–+โˆ(๐‘ก2โˆ’๐›ผ๐‘–2)
๐‘˜+1
๐‘–=1 ๐œ”๐‘–,๐œ๐‘กโˆš2โˆ (๐›ฝ๐‘–2)๐œ”๐‘–
๐‘˜+1
๐‘–=1
โˆ (๐›ฝ๐‘–2)๐œ”๐‘–
๐‘˜+1
๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›ฝ๐‘–2)๐œ”๐‘–
๐‘˜+1
๐‘–=1 ,๐œ๐‘กโˆš2โˆ (๐›พ๐‘–2)๐œ”๐‘–
๐‘˜+1
๐‘–=1
โˆ (๐›พ๐‘–2)๐œ”๐‘–
๐‘˜+1
๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›พ๐‘–2)๐œ”๐‘–
๐‘˜+1
๐‘–=1
)
.
The e o e, LPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›) holds o any ๐‘›.
Hence, Theo em 2 is p o ed.
Theo em: 3 Se a collec ion ๐’ซ๐‘–=(๐œ๐›ผ๐‘–,๐œ๐›ฝ๐‘–,๐œ๐›พ๐‘–), ๐’ฌ๐‘–=(๐œ๐›ผ๏ฅ๐‘–,๐œ๐›ฝ๏ฉ๐‘–,๐œ๐›พ๏ฅ๐‘–)in ๐œ, o ๐‘–=1,2,3,โ€ฆ๐‘›, be wo LPNNs
wi h he weigh ec o ๐œ”=(๐œ”1,๐œ”2,๐œ”3,โ€ฆ๐œ”๐‘›)๐‘‡,โˆ‘๐œ”๐‘–=1
๐‘›๐‘–=1 and ๐œ”๐‘–โˆˆ[0,1]. We can deduce he
ollowing p ope ies:
i. ๐ผ๐‘‘๐‘’๐‘š๐‘๐‘œ๐‘ก๐‘’๐‘›๐‘๐‘ฆ: ๐ผ๐‘“ ๐’ซ๐‘–=(๐œ๐›ผ๐‘–,๐œ๐›ฝ๐‘–,๐œ๐›พ๐‘–)=(๐œ๐›ผ,๐œ๐›ฝ,๐œ๐›พ) ๐‘“๐‘œ๐‘Ÿ ๐‘Ž๐‘™๐‘™ ๐‘–,๐‘กโ„Ž๐‘’๐‘›
Neu osophic Se s and Sys ems, Vol. 94, 2025
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s
19
LPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)=(๐œ๐›ผ,๐œ๐›ฝ,๐œ๐›พ).
ii. ๐‘€๐‘œ๐‘›๐‘œ๐‘ก๐‘œ๐‘›๐‘–๐‘๐‘–๐‘ก๐‘ฆ:๐ผ๐‘“ ๐’ซ๐‘–โ‰ค ๐’ฌ๐‘–,๐‘กโ„Ž๐‘Ž๐‘ก ๐‘–๐‘ ,๐œ๐›ผ๐‘–โ‰ค๐œ๐›ผ๏ฅ๐‘–,๐œ๐›ฝ๐‘–โ‰ฅ๐œ๐›ฝ๏ฉ๐‘–,๐‘Ž๐‘›๐‘‘ ๐œ๐›พ๐‘–โ‰ฅ๐œ๐›พ๏ฅ๐‘–,๐‘กโ„Ž๐‘’๐‘› ๐‘ค๐‘’ โ„Ž๐‘Ž๐‘ฃ๐‘’
LPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)โ‰คLPNEWA(๐’ฌ1,๐’ฌ2,๐’ฌ3,โ€ฆ๐’ฌ๐‘›).
iii. Boundedness: Suppose ๐’ซโˆ’=๐‘š๐‘–๐‘›(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›),๐’ซ+=๐‘š๐‘Ž๐‘ฅ(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›),๐‘กโ„Ž๐‘’๐‘›
๐’ซโˆ’โ‰คLPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)โ‰ค ๐’ซ+.
P oo : Le ๐’ซ๐‘–=(๐œ๐›ผ๐‘–,๐œ๐›ฝ๐‘–,๐œ๐›พ๐‘–), ๐’ฌ๐‘–=(๐œ๐›ผ๏ฅ๐‘–,๐œ๐›ฝ๏ฉ๐‘–,๐œ๐›พ๏ฅ๐‘–)in ๐œ, o ๐‘–=1,2,3,โ€ฆ๐‘›, be wo collec ions o LPNNs.
Then
i. ๐‘คโ„Ž๐‘’๐‘› ๐’ซ๐‘–=(๐œ๐›ผ๐‘–,๐œ๐›ฝ๐‘–,๐œ๐›พ๐‘–)=(๐œ๐›ผ,๐œ๐›ฝ,๐œ๐›พ) ๐‘“๐‘œ๐‘Ÿ ๐‘Ž๐‘™๐‘™ ๐‘–,๐‘œ๐‘›๐‘’ โ„Ž๐‘Ž๐‘ 
LPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)
=
(
๐œ๐‘กโˆšโˆ(๐‘ก2+๐›ผ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–โˆ’โˆ(๐‘ก2โˆ’๐›ผ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–
โˆ(๐‘ก2+๐›ผ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–+โˆ(๐‘ก2โˆ’๐›ผ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–,๐œ๐‘กโˆš2โˆ (๐›ฝ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1
โˆ (๐›ฝ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›ฝ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1 ,๐œ๐‘กโˆš2โˆ (๐›พ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1
โˆ (๐›พ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›พ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1
)
,
=
(
๐œ๐‘กโˆš(๐‘ก2+๐›ผ๐‘–2)โˆ๐œ”๐‘–
๐‘›
๐‘–=1 โˆ’(๐‘ก2+๐›ผ๐‘–2)โˆ๐œ”๐‘–
๐‘›
๐‘–=1
(๐‘ก2+๐›ผ๐‘–2)โˆ๐œ”๐‘–
๐‘›
๐‘–=1 +(๐‘ก2+๐›ผ๐‘–2)โˆ๐œ”๐‘–
๐‘›
๐‘–=1 ,๐œ๐‘กโˆš2(๐›ฝ๐‘–2)โˆ ๐œ”๐‘–
๐‘˜๐‘–=1
(๐›ฝ๐‘–2)โˆ ๐œ”๐‘–
๐‘˜๐‘–=1 +(2๐‘ก2โˆ’๐›ฝ๐‘–2)โˆ ๐œ”๐‘–
๐‘˜๐‘–=1 ,๐œ๐‘กโˆš2(๐›พ๐‘–2)โˆ ๐œ”๐‘–
๐‘˜๐‘–=1
(๐›พ๐‘–2)โˆ ๐œ”๐‘–
๐‘˜๐‘–=1 +(2๐‘ก2โˆ’๐›พ๐‘–2)โˆ ๐œ”๐‘–
๐‘˜๐‘–=1
)
,
=(๐œ๐‘ก(๐›ผ๐‘–
๐‘ก),๐œ๐‘ก(๐›ฝ๐‘–
๐‘ก),๐œ๐‘ก(๐›พ๐‘–
๐‘ก))=๐’ซ๐‘–.
ii. Fo ๐’ซ๐‘–โ‰ค ๐’ฌ๐‘–,๐‘กโ„Ž๐‘’๐‘› ๐œ”๐‘–๐’ซ๐‘–โ‰ค ๐œ”๐‘–๐’ฌ๐‘–.
So, we can ob ain โŠ•๐œ–๐‘–=1
๐‘›๐œ”๐‘–๐’ซ๐‘–โ‰ค โŠ•๐œ–๐‘–=1
๐‘›๐œ”๐‘–๐’ฌ๐‘–. Fo LPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)=โŠ•๐œ–๐‘–=1
๐‘›๐œ”๐‘–๐’ซ๐‘–,
๐‘Ž๐‘›๐‘‘ LPNEWA(๐’ฌ1,๐’ฌ2,๐’ฌ3,โ€ฆ๐’ฌ๐‘›)=โŠ•๐œ–๐‘–=1
๐‘›๐œ”๐‘–๐’ฌ๐‘–, hen we can ge LPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)โ‰ค
LPNEWA(๐’ฌ1,๐’ฌ2,๐’ฌ3,โ€ฆ๐’ฌ๐‘›).
iii. Since ๐’ซโˆ’=๐‘š๐‘–๐‘›(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›),๐’ซ+=๐‘š๐‘Ž๐‘ฅ(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›). By he p e ious p oo (๐‘–๐‘–), we ha e
LPNEWA(๐’ซโˆ’,๐’ซโˆ’,๐’ซโˆ’,โ€ฆ๐’ซโˆ’)โ‰คLPNEWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)โ‰คLPNEWA(๐’ซ+,๐’ซ+,๐’ซ+,โ€ฆ๐’ซ+).
In addi ion, by he p e ious p oo (๐‘–), we ha e
LPNEWA(๐’ซ+,๐’ซ+,๐’ซ+,โ€ฆ๐’ซ+)=๐’ซ+,๐‘Ž๐‘›๐‘‘ LPNEWA(๐’ซโˆ’,๐’ซโˆ’,๐’ซโˆ’,โ€ฆ๐’ซโˆ’)=๐’ซโˆ’.
F om all he abo e, we can ge ๐’ซโˆ’โ‰คLPNEWA(๐’ซ+,๐’ซ+,๐’ซ+,โ€ฆ๐’ซ+)=๐’ซ+.
4.2 LPN Eins ein o de weigh ed a e age (LPNEOWA) ope a o
De ini ion: 9 Se a LPNNs ๐’ซ๐‘–=(๐œ๐›ผ1,๐œ๐›ฝ1,๐œ๐›พ1) in ๐œ, o ๐‘–=1,2,3,โ€ฆ๐‘›, hen he LPNEOWA ope a o is
de ined as: LPNEOWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)=๐œ”1๐’ซ๐œŒ(1)โŠ•๐œ–๐œ”2๐’ซ๐œŒ(2)โŠ•๐œ–๐œ”3๐’ซ๐œŒ(3)โŠ•๐œ–โ€ฆโŠ•๐œ–๐œ”๐‘›๐’ซ๐œŒ(๐‘›),
whe e (๐œŒ(1),๐œŒ(2),๐œŒ(3),โ€ฆ๐œŒ(๐‘›)) is a pe mu a ion o (๐‘–=1,2,3,โ€ฆ๐‘›),๐‘ ๐‘ข๐‘โ„Ž ๐‘กโ„Ž๐‘Ž๐‘ก ๐’ซ๐œŒ(๐‘–โˆ’1)โ‰ฅ๐’ซ๐œŒ(๐‘–) o each
๐‘–, wi h he weigh ec o ๐œ”=(๐œ”1,๐œ”2,๐œ”3,โ€ฆ๐œ”๐‘›)๐‘‡,โˆ‘๐œ”๐‘–=1
๐‘›๐‘–=1 and ๐œ”๐‘–โˆˆ[0,1].
Theo em: 4 Se a collec ion ๐’ซ๐‘–=(๐œ๐›ผ๐‘–,๐œ๐›ฝ๐‘–,๐œ๐›พ๐‘–) in ๐œ, o ๐‘–=1,2,3,โ€ฆ๐‘›, hen he usion esul by
LPNEOWA ope a o is ob ained as:
Neu osophic Se s and Sys ems, Vol. 94, 2025
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s
20
LPNEOWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)=
(
๐œ๐‘กโˆšโˆ(๐‘ก2+๐›ผ๐œŒ(๐‘–)
2)
๐‘›
๐‘–=1 ๐œ”๐‘–โˆ’โˆ(๐‘ก2โˆ’๐›ผ๐œŒ(๐‘–)
2)
๐‘›
๐‘–=1 ๐œ”๐‘–
โˆ(๐‘ก2+๐›ผ๐œŒ(๐‘–)
2)
๐‘›
๐‘–=1 ๐œ”๐‘–+โˆ(๐‘ก2โˆ’๐›ผ๐œŒ(๐‘–)
2)
๐‘›
๐‘–=1 ๐œ”๐‘–,๐œ๐‘กโˆš2โˆ (๐›ฝ๐œŒ(๐‘–)
2)๐œ”๐‘–
๐‘›
๐‘–=1
โˆ (๐›ฝ๐œŒ(๐‘–)
2)๐œ”๐‘–
๐‘›
๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›ฝ๐œŒ(๐‘–)
2)๐œ”๐‘–
๐‘›
๐‘–=1 ,๐œ๐‘กโˆš2โˆ (๐›พ๐œŒ(๐‘–)
2)๐œ”๐‘–
๐‘›
๐‘–=1
โˆ (๐›พ๐œŒ(๐‘–)
2)๐œ”๐‘–
๐‘›
๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›พ๐œŒ(๐‘–)
2)๐œ”๐‘–
๐‘›
๐‘–=1
)
,
whe e (๐œŒ(1),๐œŒ(2),๐œŒ(3),โ€ฆ๐œŒ(๐‘›)) is a pe mu a ion o (๐‘–=1,2,3,โ€ฆ๐‘›),๐‘ ๐‘ข๐‘โ„Ž ๐‘กโ„Ž๐‘Ž๐‘ก ๐’ซ๐œŒ(๐‘–โˆ’1)โ‰ฅ๐’ซ๐œŒ(๐‘–) o each
๐‘–, wi h he weigh ec o ๐œ”=(๐œ”1,๐œ”2,๐œ”3,โ€ฆ๐œ”๐‘›)๐‘‡,โˆ‘๐œ”๐‘–=1
๐‘›๐‘–=1 and ๐œ”๐‘–โˆˆ[0,1]. E iden ly, i ๐œ”=
(1๐‘›,1๐‘›,1๐‘›,โ€ฆ,1๐‘› ),๐‘กโ„Ž๐‘’ LPNEOWA ope a o will educe o LPNWA ope a o .
Theo em: 5 Se a collec ion ๐’ซ๐‘–=(๐œ๐›ผ๐‘–,๐œ๐›ฝ๐‘–,๐œ๐›พ๐‘–), ๐’ฌ๐‘–=(๐œ๐›ผ๏ฅ๐‘–,๐œ๐›ฝ๏ฉ๐‘–,๐œ๐›พ๏ฅ๐‘–)in ๐œ, o ๐‘–=1,2,3,โ€ฆ๐‘›, be wo LPNNs
wi h he weigh ec o ๐œ”=(๐œ”1,๐œ”2,๐œ”3,โ€ฆ๐œ”๐‘›)๐‘‡,โˆ‘๐œ”๐‘–=1
๐‘›๐‘–=1 and ๐œ”๐‘–โˆˆ[0,1]. We can deduce he
ollowing p ope ies:
i. ๐ผ๐‘‘๐‘’๐‘š๐‘๐‘œ๐‘ก๐‘’๐‘›๐‘๐‘ฆ: ๐ผ๐‘“ ๐’ซ๐‘–=(๐œ๐›ผ๐‘–,๐œ๐›ฝ๐‘–,๐œ๐›พ๐‘–)=(๐œ๐›ผ,๐œ๐›ฝ,๐œ๐›พ) ๐‘“๐‘œ๐‘Ÿ ๐‘Ž๐‘™๐‘™ ๐‘–,๐‘กโ„Ž๐‘’๐‘›
LPNEOWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)=(๐œ๐›ผ,๐œ๐›ฝ,๐œ๐›พ).
ii. ๐‘€๐‘œ๐‘›๐‘œ๐‘ก๐‘œ๐‘›๐‘–๐‘๐‘–๐‘ก๐‘ฆ:๐ผ๐‘“ ๐’ซ๐‘–โ‰ค ๐’ฌ๐‘–,๐‘กโ„Ž๐‘Ž๐‘ก ๐‘–๐‘ ,๐œ๐›ผ๐‘–โ‰ค๐œ๐›ผ๏ฅ๐‘–,๐œ๐›ฝ๐‘–โ‰ฅ๐œ๐›ฝ๏ฉ๐‘–,๐‘Ž๐‘›๐‘‘ ๐œ๐›พ๐‘–โ‰ฅ๐œ๐›พ๏ฅ๐‘–,๐‘กโ„Ž๐‘’๐‘›
LPNEOWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)โ‰คLPNEWOA(๐’ฌ1,๐’ฌ2,๐’ฌ3,โ€ฆ๐’ฌ๐‘›).
iii. Boundedness: Suppose ๐’ซโˆ’=๐‘š๐‘–๐‘›(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›),๐’ซ+=๐‘š๐‘Ž๐‘ฅ(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›),๐‘กโ„Ž๐‘’๐‘›
๐’ซโˆ’โ‰คLPNEOWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)โ‰ค ๐’ซ+.
i . Commu a i i y: ๐’ฌ๐‘–=(๐œ๐›ผ๏ฅ๐‘–,๐œ๐›ฝ๏ฉ๐‘–,๐œ๐›พ๏ฅ๐‘–) (๐‘–=1,2,3,โ€ฆ๐‘›) is any pe mu a ion o ๐’ซ๐‘–=(๐œ๐›ผ๐‘–,๐œ๐›ฝ๐‘–,๐œ๐›พ๐‘–),
hen LPNEOWA(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)=LPNEWOA(๐’ฌ1,๐’ฌ2,๐’ฌ3,โ€ฆ๐’ฌ๐‘›). The p oo is simila o ha o
Theo em 3; he e o e, we omi i he e.
4.3 LPN Eins ein weigh ed geome y (LPNEWG) ope a o
De ini ion: 10 Le LPNNs ๐’ซ๐‘–=(๐œ๐›ผ1,๐œ๐›ฝ1,๐œ๐›พ1) in ๐œ, o ๐‘–=1,2,3,โ€ฆ๐‘›. Then he LPNEWG ope a o is
de ined as: LPNEWG (๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)=๐’ซ1๐œ”1โŠ—๐œ–๐’ซ2๐œ”2โŠ—๐œ–โ€ฆ๐’ซ๐‘›๐œ”๐‘›, wi h he weigh ec o ๐œ”=
(๐œ”1,๐œ”2,๐œ”3,โ€ฆ๐œ”๐‘›)๐‘‡,โˆ‘๐œ”๐‘–=1
๐‘›๐‘–=1 and ๐œ”๐‘–โˆˆ[0,1].
Theo em: 6 Se a collec ion ๐’ซ๐‘–=(๐œ๐›ผ๐‘–,๐œ๐›ฝ๐‘–,๐œ๐›พ๐‘–) in ๐œ, o ๐‘–=1,2,3,โ€ฆ๐‘›, hen he usion alue gene a ed
by LPNEWG ope a o is also a LPNN and
LPNEWG(๐’ซ1,๐’ซ2,๐’ซ3,โ€ฆ๐’ซ๐‘›)=( ๐œ๐‘กโˆš2โˆ (๐›ผ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1
โˆ (๐›ผ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1 +โˆ (2๐‘ก2โˆ’๐›ผ๐‘–2)๐œ”๐‘–
๐‘›
๐‘–=1 ,๐œ๐‘กโˆšโˆ(๐‘ก2+๐›ฝ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–โˆ’โˆ(๐‘ก2โˆ’๐›ฝ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–
โˆ(๐‘ก2+๐›ฝ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–+โˆ(๐‘ก2โˆ’๐›ฝ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–,๐œ๐‘กโˆšโˆ(๐‘ก2+๐›พ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–โˆ’โˆ(๐‘ก2โˆ’๐›พ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–
โˆ(๐‘ก2+๐›พ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–+โˆ(๐‘ก2โˆ’๐›พ๐‘–2)
๐‘›
๐‘–=1 ๐œ”๐‘–) wi h
he weigh ec o ๐œ”=(๐œ”1,๐œ”2,๐œ”3,โ€ฆ๐œ”๐‘›)๐‘‡,โˆ‘๐œ”๐‘–=1
๐‘›๐‘–=1 and ๐œ”๐‘–โˆˆ[0,1].
P oo : When ๐‘›=2,LPNEWA(๐’ซ1,๐’ซ2)=๐’ซ1๐œ”1โŠ—๐œ–๐’ซ2๐œ”2.
By de ini ion 5, we ge
๐’ซ1๐œ”1=(๐œ๐‘กโˆš2(๐›ผ12)๐œ”1
(๐›ผ12)๐œ”1(2๐‘ก2โˆ’๐›ผ12)๐œ”1,๐œ๐‘กโˆš(๐‘ก2+๐›ฝ12)๐œ”1โˆ’(๐‘ก2โˆ’๐›ฝ12)๐œ”1
(๐‘ก2+๐›ฝ12)๐œ”1+(๐‘ก2โˆ’๐›ฝ12)๐œ”1,๐œ๐‘กโˆš(๐‘ก2+๐›พ12)๐œ”1โˆ’(๐‘ก2โˆ’๐›พ12)๐œ”1
(๐‘ก2+๐›พ12)๐œ”1+(๐‘ก2โˆ’๐›พ12)๐œ”1),
๐’ซ2๐œ”2=(๐œ๐‘กโˆš2(๐›ผ22)๐œ”2
(๐›ผ22)๐œ”2(2๐‘ก2โˆ’๐›ผ22)๐œ”2,๐œ๐‘กโˆš(๐‘ก2+๐›ฝ22)๐œ”2โˆ’(๐‘ก2โˆ’๐›ฝ22)๐œ”2
(๐‘ก2+๐›ฝ22)๐œ”2+(๐‘ก2โˆ’๐›ฝ22)๐œ”2,๐œ๐‘กโˆš(๐‘ก2+๐›พ22)๐œ”2โˆ’(๐‘ก2โˆ’๐›พ22)๐œ”2
(๐‘ก2+๐›พ22)๐œ”2+(๐‘ก2โˆ’๐›พ22)๐œ”2)
Neu osophic Se s and Sys ems, Vol. 94, 2025
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s
27
SDG2 ocuses on ending hunge , achie ing ood secu i y and imp o ed nu i ion and p omo ing
sus ainable ag icul u e. In he Indian ag icul u e sec o , companies like God ej Ag o e , AgNex
Technologies, and Co omandel In e na ional a e known o hei sus ainabili y ini ia i es and ocus
on sus ainable a ming p ac ices.
In his wo k, we conside ou o hese companies โ„ญ=(โ„ญ1,โ„ญ2,โ„ญ3,โ„ญ4) in India depends on hei
p oduc selling s a egies o achie ing sus ainabili y in ag icul u e. based on hese ac o s how he
companies can main ain hei sus ainabili y in he ag icul u e ield. The e a e decision make s/
expe s ๐”‡=(๐”‡1,๐”‡2,๐”‡3) a e in i ed o e alua e acco ding o six ac o s based on he companyโ€™s
pe o mance wi h weigh ec o is ๐“Œ = (0.37,0.33,0.3) . The e alua ions based on he expe s make
e alua ions on he ou al e na i e ac o s ๐’ฎโ„ฑ=(๐’ฎโ„ฑ1, ๐’ฎโ„ฑ2, ๐’ฎโ„ฑ3, ๐’ฎโ„ฑ4) wi h he weigh ec o ๐’ฒ๐‘“=
(0.26,024,0.21,0.29). Now, he expe s use LPNNs o make he e alua ion alues wi h a linguis ic
se ๐œ = {๐œ0 = ๐‘’๐‘ฅ๐‘ก๐‘Ÿ๐‘’๐‘š๐‘’๐‘™๐‘ฆ ๐‘๐‘œ๐‘œ๐‘Ÿ,๐œ1 = ๐‘ฃ๐‘’๐‘Ÿ๐‘ฆ ๐‘๐‘œ๐‘œ๐‘Ÿ,๐œ2= ๐‘๐‘œ๐‘œ๐‘Ÿ,๐œ3= ๐‘ ๐‘™๐‘–๐‘”โ„Ž๐‘ก๐‘™๐‘ฆ ๐‘๐‘œ๐‘œ๐‘Ÿ,๐œ4= ๐‘š๐‘’๐‘‘๐‘–๐‘ข๐‘š ,๐œ5=
๐‘ ๐‘™๐‘–๐‘”โ„Ž๐‘ก๐‘™๐‘ฆ ๐‘”๐‘œ๐‘œ๐‘‘,๐œ6= ๐‘”๐‘œ๐‘œ๐‘‘,๐œ7= ๐‘ฃ๐‘’๐‘Ÿ๐‘ฆ ๐‘”๐‘œ๐‘œ๐‘‘,๐œ8 = ๐‘’๐‘ฅ๐‘ก๐‘Ÿ๐‘’๐‘š๐‘’๐‘™๐‘ฆ ๐‘”๐‘œ๐‘œ๐‘‘}. The decision e alua ion ma ix
a e gi en below ( ables 1โ€“ 4).
Table 1: The i s decision make ๐”‡1 gi es he ollowing alues in he ma ix o m
๐“ข๐“•๐Ÿ ๐“ข๐“•๐Ÿ ๐“ข๐“•๐Ÿ‘ ๐“ข๐“•๐Ÿ’
โ„ญ1 (๐œ6,๐œ1,๐œ3) (๐œ7,๐œ1,๐œ3) (๐œ8,๐œ1,๐œ3) (๐œ5,๐œ2,๐œ3)
โ„ญ2 (๐œ6,๐œ2,๐œ3) (๐œ6,๐œ7,๐œ5) (๐œ6,๐œ6,๐œ3) (๐œ5,๐œ3,๐œ3)
โ„ญ3 (๐œ6,๐œ3,๐œ3) (๐œ6,๐œ4,๐œ3) (๐œ6,๐œ1,๐œ6) (๐œ5,๐œ3,๐œ3)
โ„ญ4 (๐œ6,๐œ2,๐œ2) (๐œ6,๐œ1,๐œ5) (๐œ8,๐œ1,๐œ3) (๐œ6,๐œ3,๐œ3)
Table 2: The second decision make ๐”‡2 gi es he ollowing alues in he ma ix o m
๐“ข๐“•๐Ÿ ๐“ข๐“•๐Ÿ ๐“ข๐“•๐Ÿ‘ ๐“ข๐“•๐Ÿ’
โ„ญ1 (๐œ6,๐œ2,๐œ3) (๐œ7,๐œ4,๐œ3) (๐œ6,๐œ1,๐œ3) (๐œ6,๐œ3,๐œ3)
โ„ญ2 (๐œ6,๐œ2,๐œ3) (๐œ7,๐œ1,๐œ4) (๐œ6,๐œ1,๐œ3) (๐œ7,๐œ2,๐œ3)
โ„ญ3 (๐œ5,๐œ3,๐œ3) (๐œ5,๐œ2,๐œ4) (๐œ6,๐œ1,๐œ3) (๐œ8,๐œ3,๐œ3)
โ„ญ4 (๐œ6,๐œ4,๐œ3) (๐œ5,๐œ4,๐œ3) (๐œ6,๐œ1,๐œ3) (๐œ5,๐œ2,๐œ3)
Table 3: The hi d decision make ๐”‡3 gi es he ollowing alues in he ma ix o m
๐“ข๐“•๐Ÿ ๐“ข๐“•๐Ÿ ๐“ข๐“•๐Ÿ‘ ๐“ข๐“•๐Ÿ’
โ„ญ1 (๐œ7,๐œ1,๐œ3) (๐œ6,๐œ2,๐œ5) (๐œ3,๐œ3,๐œ3) (๐œ8,๐œ1,๐œ3)
โ„ญ2 (๐œ6,๐œ4,๐œ3) (๐œ6,๐œ2,๐œ5) (๐œ5,๐œ5,๐œ5) (๐œ6,๐œ2,๐œ2)
โ„ญ3 (๐œ6,๐œ1,๐œ4) (๐œ6,๐œ5,๐œ3) (๐œ6,๐œ5,๐œ3) (๐œ6,๐œ2,๐œ3)
โ„ญ4 (๐œ6,๐œ1,๐œ5) (๐œ6,๐œ5,๐œ3) (๐œ4,๐œ4,๐œ3) (๐œ6,๐œ3,๐œ3)
Based on he ๐‹๐๐๐„๐–๐€ and ๐‹๐๐๐„๐–๐† ope a o s, we sol e he abo e decision-making p oblem in he
ollowing manne and he ob ained alues a e in Table 5 and Table 6.
Table 5. The o e all decision ma ix
Neu osophic Se s and Sys ems, Vol. 94, 2025
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s

28
๐“ข๐“•๐Ÿ ๐“ข๐“•๐Ÿ ๐“ข๐“•๐Ÿ‘ ๐“ข๐“•๐Ÿ’
โ„ญ1 (๐œ6.0397,๐œ1.1230,๐œ3) (๐œ6.6098,๐œ1.4128,๐œ3.5219) (๐œ8,๐œ1.1862,๐œ3) (๐œ8,๐œ1.2946,๐œ3)
โ„ญ2 (๐œ5.7547,๐œ1.17956,๐œ3) (๐œ6.2061,๐œ2.6956,๐œ4.6548) (๐œ5.5650,๐œ2.5979,๐œ3.5219) (๐œ5.3915,๐œ1.6758,๐œ2.6612)
โ„ญ3 (๐œ5.4334,๐œ1.81.42,๐œ3.2762) (๐œ5.4334,๐œ2.4168,๐œ3.3049) (๐œ5.7547,๐œ1.3046,๐œ3.9515) (๐œ5.3915,๐œ1.6758,๐œ3)
โ„ญ4 (๐œ5.7547,๐œ1.6443,๐œ3.0485) (๐œ5.4334,๐œ1.6460,๐œ3.6536) (๐œ8,๐œ1.2478,๐œ3) (๐œ5.4334,๐œ1.9888,๐œ3)
S ep 2: The o al collec i e LPNN โ„ญ๐‘– (๐‘– = 1,2, โ€ฆ, ๐‘š) can be ob ained by he LPNEWA ope a o :
โ„ญ1=(๐œ8,๐œ2.3655,๐œ3.1190);โ„ญ2=(๐œ5.0618,๐œ3.1022,๐œ3.3464);
โ„ญ3=(๐œ4.7291,๐œ3.2301,๐œ3.3319); โ„ญ4= (๐œ7.6441,๐œ3.0416,๐œ3.1604)
S ep 3: By using de ini ion 5, we calcula e he expec ed alues o ๐”—(โ„ญ๐‘–) o โ„ญ๐‘– (๐‘– = 1,2,3,4)
๐”—(โ„ญ1)=6.1285; ๐”—(โ„ญ2)= 4.7889 ;๐”—(โ„ญ3)=4.6486 ; ๐”—(โ„ญ4)=5.8649.
Based on he expec ed alues, ou al e na i es can be anked โ„ญ1 โ‰ป โ„ญ4โ‰ป โ„ญ2โ‰ป โ„ญ3,. Thus, company
โ„ญ3 is he op imal choice.
Now, we ind he op imal choice using he LPNEWG ope a o .
Table 6. The o e all decision ma ix
๐“ข๐“•๐Ÿ ๐“ข๐“•๐Ÿ ๐“ข๐“•๐Ÿ‘ ๐“ข๐“•๐Ÿ’
โ„ญ1 (๐œ3.5005,๐œ1.3752,๐œ2.848) (๐œ3.7147,๐œ2.558,๐œ3.391) (๐œ3.589,๐œ1.585,๐œ3.391) (๐œ3.392,๐œ1.418,๐œ2.848)
โ„ญ2 (๐œ3.4122,๐œ2.4606,๐œ2.848) (๐œ3.5091,๐œ4.968,๐œ4.447) (๐œ3.327,๐œ4.471,๐œ3.391) (๐œ3.197,๐œ2.116,๐œ2.667)
โ„ญ3 (๐œ3.3187,๐œ2.5533,๐œ3.089) (๐œ3.3187,๐œ3.534,๐œ4.447) (๐œ3.412,๐œ2.442,๐œ4.388) (๐œ3.197,๐œ2.116,๐œ2.848)
โ„ญ4 (๐œ3.4122,๐œ2.6547,๐œ3.111) (๐œ3.3187,๐œ3.307,๐œ3.785) (๐œ3.685,๐œ1.991,๐œ2.848) (๐œ3.319,๐œ2.542,๐œ2.848)
S ep 2: The o al collec i e LPNN โ„ญ๐‘– (๐‘– = 1,2, โ€ฆ, ๐‘š) can be ob ained by he LPNEWA ope a o :
โ„ญ1=(๐œ4.8605,๐œ1.5982,๐œ2.593);โ„ญ2=(๐œ4.6882,๐œ3.4566,๐œ3.093);
โ„ญ3=(๐œ4.6193,๐œ2.4321,๐œ3.054); โ„ญ4= (๐œ4.7284,๐œ2.2984,๐œ2.803)
S ep 3: By using de ini ion 5, we calcula e he expec ed alues o ๐”—(โ„ญ๐‘–) o โ„ญ๐‘– (๐‘– = 1,2,3,4)
๐”—(โ„ญ1)=5.1103; ๐”—(โ„ญ2)= 4.6356 ;๐”—(โ„ญ3)=4.8338 ; ๐”—(โ„ญ4)=4.9402.
Based on he expec ed alues, ou al e na i es can be anked โ„ญ1 โ‰ป โ„ญ4โ‰ป โ„ญ3โ‰ป โ„ญ2. Thus, company
โ„ญ2 is he op imal choice.
6.2 Compa a i e Analysis
We compa e he p oposed LPNEWA and LPNEWG me hods wi h o he LIFEWA and LPFEWA
app oaches. The esul s o his compa ison a e p esen ed in Figu e 4.
F om Figu e 4, i is e iden ha al e na i es โ„ญ3 and โ„ญ2 eme ge as he mos op imal choices when
e alua ed using he LPNEWA and LPNEWG me hods. The anking o de s p oduced by hese wo
me hods a e: โ„ญ1 โ‰ป โ„ญ4โ‰ป โ„ญ2โ‰ป โ„ญ3 o LPNEWA, and โ„ญ1 โ‰ป โ„ญ4โ‰ป โ„ญ3โ‰ป โ„ญ2. o LPNEWG. To
alida e he e ec i eness o he p oposed me hod, a compa ison is made wi h exis ing app oaches,
including he linguis ic in ui ionis ic uzzy weigh ed a e age (LIFWA) ope a o in oduced by Chen
e al. [25], he LPF weigh ed a e age (LPFWA) ope a o de eloped by Ga g [26], Sine Single-Valued
Neu osophic Se s and Sys ems, Vol. 94, 2025
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s
29
Neu osophic Eins ein Weigh ed A e aging (S-S NVEWA) and Sine Single-Valued Neu osophic
Eins ein Weigh ed Geome ic (S-S NVEWG) agg ega ion ope a o s de eloped by Zhang e al. [27].
Unlike hese ea lie me hods [25โ€“27], he p oposed LPNN-based app oach can e ec i ely ep esen
and handle pu ely linguis ic e alua ion aluesโ€”some hing ha adi ional MCDM me hods canno
achie e. By in eg a ing LPNS wi h Eins ein ope a ions, he p oposed me hod clea ly demons a es
i s lexibili y and e ec i eness.
Fig. 4. Compa a i e analysis o di e en MCDM me hods
7. Conclusion
This pape p oposed a no el app oach o sol ing MCDM p oblems. Ini ially, he Eins ein ope a ion
was applied o Linguis ic Py hago ean Neu osophic Numbe s (LPNNs), and new ope a ional ules
we e es ablished based on his ope a o . Subsequen ly, se e al agg ega ion ope a o s we e in eg a ed
wi h he LPNNs o de ine he Linguis ic Py hago ean Neu osophic Eins ein Weigh ed A e age
(LPNEWA) ope a o and he Linguis ic Py hago ean Neu osophic Eins ein Weigh ed Geome ic
(LPNEWG) ope a o , in acco dance wi h he newly de eloped ules. Using he LPNEWA and
LPNEWG ope a o s, wo me hods we e in oduced o e ec i ely add ess MCDM p oblems. To
demons a e he p ac icali y and bene i s o he p oposed me hods, hey we e applied o a eal-wo ld
example.
Acknowledgmen s: The au ho s wish o exp ess g a i ude o he Managemen , P incipal, S i
Si asub amaniya Nada College o Enginee ing, Chennai, India.
Con lic s o In e es : The au ho s decla e no con lic s o in e es .
Neu osophic Se s and Sys ems, Vol. 94, 2025
S. Annadu ai, R. Sunda eswa an, M. Shanmugap iya, M. Mohanalakshmi , Sus ainabili y analysis in ag icul u e using
Linguis ic Py hago ean Neu osophic numbe h ough Eins ein agg ega ion ope a o s
30
Funding: This esea ch ecei ed no ex e nal unding.
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