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 hodologyโs 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 (๐๐ ๐๐ก), as an ex ension o
in ui ionis ic uzzy se s (๐ผ๐น๐ ๐๐ก), which p o ides a mo e comp ehensi e amewo k o handling
unce ain y. Unlike ๐ผ๐น๐ ๐๐ก๐ , hose ha a e cha ac e ized by deg ees o u h and alsi y, ๐๐ ๐๐ก
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
๐๐ ๐๐ก 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 ๐๐ ๐๐ก๐ . Linguis ic a iables (๐ฟ๐๐ ) a e used o exp ess
quali a i e e alua ions in complex decision-making. Zadeh [6] concep o ๐ฟ๐๐ 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
(๐ฟ๐๐๐ ), 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 ๐ฟ๐๐๐ 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 ๐ผ๐น๐ ๐๐ก๐ 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 ๐ผ๐น๐ธ๐ด 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 ๐ผ๐น๐ธ๐ป๐ด and
๐ผ๐น๐ธ๐ป๐บ 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 ๐ฟ๐๐๐ , 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 ๐ฟ๐๐๐ 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
โข 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.
โข 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
โข Ex ending he Eins ein T-no m and T-cono m o LPNEO o enhance lexibili y and
obus ness.
โข 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.
โข 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 (๐๐ ๐๐ก): [1] Le ฮ be a uni e se se . A ๐๐ ๐๐ก, ๐ด๓ฐป on ฮ is de ined as ๐ด๓ฐป=
{โฉ๐ฅ,๐๐ด๏จ(๐ฅ),๐ผ๐ด๏จ(๐ฅ),๐น๐ด๏จ(๐ฅ)โช:๐ฅโฮ}, whe e ๐๐ด๏จ(๐ฅ):ฮโโ]0,1[+ is said o be he TMF, which ep esen s he
deg ee o con idence, ๐ผ๐ด๏จ(๐ฅ):ฮโโ]0,1[+is said o be he IMF, which ep esen s he deg ee o
unce ain y, and ๐น๐ด๏จ(๐ฅ):ฮโโ]0,1[+ is said o be he FMF, which ep esen s he deg ee o skep icism,
espec i ely o he elemen ๐ฅโฮ in ๐ด๐
๏ช , such ha 0โค๐๐ด๏จ(๐ฅ)+๐ผ๐ด๏จ(๐ฅ)+๐น๐ด๏จ(๐ฅ)โค3.
De ini ion: 2 Py hago ean Neu osophic se s (๐๐๐ ๐๐ก): [2] Le ฮ be a uni e se se . A ๐๐๐ ๐๐ก ๐ด๓ฐป on ฮ is
de ined as ๐ด๓ฐป={โฉ๐ฅ,๐๐ด๏จ(๐ฅ),๐ผ๐ด๏จ(๐ฅ),๐น๐ด๏จ(๐ฅ)โช:๐ฅโฮ}, such ha ( ๐๐ด๏จ(๐ฅ))2+( ๐ผ๐ด๏จ(๐ฅ))2+( ๐น๐ด๏จ(๐ฅ))2โค2, whe e
๐๐ด๏จ(๐ฅ):ฮโโ]0,1[+ is he TMF, ๐ผ๐ด๏จ(๐ฅ):ฮโโ]0,1[+is he IMF, and ๐น๐ด๏จ(๐ฅ):ฮโโ]0,1[+ is he FMF.
De ini ion: 3 Linguis ic Neu osophic Se (๐ฟ๐๐ ๐๐ก): [3] Le ฮ be a uni e se se . A ๐ฟ๐๐ ๐๐ก in ฮ is de ined
as ๐ด๓ฐป={โฉ๐ฅ,๐๐ด๏จ(๐ฅ),๐ผ๐ด๏จ(๐ฅ),๐น๐ด๏จ(๐ฅ)โช:๐ฅโฮ}, whe e ๐๐ด๏จ(๐ฅ):ฮโโ]0,1[+ is he LTMF, ๐ผ๐ด๏จ(๐ฅ):ฮโโ]0,1[+is he
LIMF, and ๐น๐ด๏จ(๐ฅ):ฮโโ]0,1[+ is he LFMF. Each membe ship unc ions ๐๐ด๏จ(๐ฅ),๐ผ๐ด๏จ(๐ฅ),๐๐๐ ๐น๐ด๏จ(๐ฅ) 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 (๐ฟ๐๐๐ ๐๐ก): [24] Le ฮ be a uni e se se . A ๐ฟ๐๐๐ ๐๐ก
in ฮ is de ined as ๐ด๓ฐป={โฉ๐ฅ,๐๐ด๏จ(๐ฅ),๐ผ๐ด๏จ(๐ฅ),๐น๐ด๏จ(๐ฅ)โช:๐ฅโฮ}, such ha ( ๐๐ด๏จ(๐ฅ))2+( ๐ผ๐ด๏จ(๐ฅ))2+( ๐น๐ด๏จ(๐ฅ))2โค2,
whe e ๐๐ด๏จ(๐ฅ),๐ผ๐ด๏จ(๐ฅ),๐๐๐ ๐น๐ด๏จ(๐ฅ) 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,๏ฅ๐๏จ)โ[0.1], he
Eins ein sums and p oduc a e de ined as ollows:
๐๓ฐป๐ธ(๐ ๏ฅ,๐
๏ฉ)=๐ ๏ฅโ๐๐๏จ=๐๏ค+๐๏จ
1+๐โ
๏ฅ๐๏จ , ๐๏จ๐ธ(๐ ๏ฅ,๐
๏ฉ)=๐ ๏ฅโ๐๐๏จ=๐โ
๏ฅ๐๏จ
1+(1โ๐๏ค)โ(1โ๐๏จ), โ(๐ ๏ฅ,๐
๏ฉ)โ[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 ๐ฃ = (๐๐ผ1,๐๐ฝ1,๐๐พ1) be a LPNN. Then he sco e unc ion ๐ฏ and accu acy unc ion โ
o ๐ a e de ined as: ๐(๐) = ๐โ๐2+๐ผ12โ๐ฝ12โ๐พ12
3
โ(๐) = ๐โ๐ผ12+๐ฝ12โ๐พ12
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 ๐ฏ(๐)>๐ฏ(โฌ), hen ๐โปโฌ;
ii. i ๐ฏ(๐)=๐ฏ(โฌ), hen
โข i โ(๐)<โ(โฌ), hen ๐โบ โฌ;
โข i โ(๐)=โ(โฌ), hen ๐โผ โฌ.
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 (โ๐) and Eins ein p oduc (โ๐) 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 ๐ซ=(๐๐ผ1,๐๐ฝ1,๐๐พ1) and ๐ฌ=(๐๐ผ2,๐๐ฝ2,๐๐พ2) be wo LPNNs and ๐โฅ0, hen he Eins ein
ope a ion o โ๐ and โ๐ unde he LPNN a e de ined as ollows:
i. ๐ซโ๐๐ฌ=(๐๐กโ๐ก2(๐ผ12+๐ผ22)
๐ก4+๐ผ12๐ผ22,๐๐ก๐ฝ1๐ฝ2
โ๐ก4+(๐ก2โ๐ฝ12)(๐ก2โ๐ฝ22),๐๐ก๐พ1๐พ2
โ๐ก4+(๐ก2โ๐พ12)(๐ก2โ๐พ22));
ii. ๐ซโ๐๐ฌ=(๐๐ก๐ผ1๐ผ2
โ๐ก4+(๐ก2โ๐ผ12)(๐ก2โ๐ผ22),๐๐กโ๐ก2(๐ฝ12+๐ฝ22)
๐ก4+๐ฝ12๐ฝ22,๐๐กโ๐ก2(๐พ12+๐พ22)
๐ก4+๐พ12๐พ22);
iii. ๐๐ซ=
(
๐๐กโ(๐ก2+๐ผ12)๐โ(๐ก2โ๐ผ12)๐
(๐ก2+๐ผ12)๐+(๐ก2โ๐ผ12)๐,๐๐กโ2 ๐ฝ1๐
โ(2๐ก2โ๐ฝ12)๐+(๐ฝ12)๐,๐๐กโ2 ๐พ1๐
โ(2๐ก2โ๐พ12)๐+(๐พ12)๐
)
;
i . ๐ซ๐=
(
๐๐กโ2 ๐ผ1๐
โ(2๐ก2โ๐ผ12)๐+(๐ผ12)๐,๐๐กโ(๐ก2+๐ฝ12)๐โ(๐ก2โ๐ฝ12)๐
(๐ก2+๐ฝ12)๐+(๐ก2โ๐ฝ12)๐,๐๐กโ(๐ก2+๐พ12)๐โ(๐ก2โ๐พ12)๐
(๐ก2+๐พ12)๐+(๐ก2โ๐พ12)๐
)
.
Theo em: 1 Le ๐ซ=(๐๐ผ1,๐๐ฝ1,๐๐พ1) and ๐ฌ=(๐๐ผ2,๐๐ฝ2,๐๐พ2) be wo LPNNs and ๐1,๐2,๐3โฅ0, hen he
Eins ein ope a ion o โ๐ and โ๐ ha e he ollowing pe o mance:
i. ๐ซโ๐๐ฌ=๐ฌโ๐๐ซ;
ii. ๐ซโ๐๐ฌ=๐ฌโ๐๐ซ;
iii. ๐(๐ซโ๐๐ฌ)=๐๐ซโ๐๐๐ฌ;
i . (๐ซโ๐๐ฌ)๐=๐ซ๐โ๐๐ฌ๐;
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
. (๐1โ๐ ๐2)๐ซ=๐1๐ซโ๐๐2๐ซ;
i. ๐ซ๐1โ๐๐ซ๐2=๐ซ๐1+๐2.
P oo : Pe o mance (๐) ๐๐๐ (๐๐) ๐๐๐ ๐๐๐ ๐ฆ.๐๐,๐คe p o es (๐๐๐),๐๐๐ (๐ฃ).
Acco ding o De ini ion 5, we can ge
๐ซโ๐๐ฌ=(๐๐กโ๐ก2(๐ผ12+๐ผ22)
๐ก4+๐ผ12๐ผ22,๐๐ก๐ฝ1๐ฝ2
โ๐ก4+(๐ก2โ๐ฝ12)(๐ก2โ๐ฝ22),๐๐ก๐พ1๐พ2
โ๐ก4+(๐ก2โ๐พ12)(๐ก2โ๐พ22));
=(๐๐กโ(๐ก2+๐ผ12)(๐ก2+๐ผ22)โ(๐ก2โ๐ผ12)(๐ก2โ๐ผ22)
(๐ก2+๐ผ12)(๐ก2+๐ผ22)+(๐ก2โ๐ผ12)(๐ก2โ๐ผ22),๐๐กโ2 ๐ฝ12๐ฝ22
๐ฝ12๐ฝ22+(2๐ก2โ๐ฝ12)(2๐ก2โ๐ฝ22),๐๐กโ2๐พ12๐พ22
๐พ12๐พ22+(2๐ก2โ๐พ12)(2๐ก2โ๐พ22));
=(๐๐กโ๐๏คโ๐๏จ
๐๏ค+๐๏จ,๐๐กโ2๐๎
๐๎+๐๏จ,๐๐กโ2 ๐๎
๐๎+๐๓ฐป)
whe e ๐๏ค=(๐ก2+๐ผ12)(๐ก2+๐ผ22),๐๏จ=(๐ก2โ๐ผ12)(๐ก2โ๐ผ22),๐๎=๐ฝ12๐ฝ22,๐๓ฐป=(2๐ก2โ๐ฝ12)(2๐ก2โ๐ฝ22),๐๎=
๐พ12๐พ22,๐๓ฐป=(2๐ก2โ๐พ12)(2๐ก2โ๐พ22).
๐ซโ๐๐ฌ=๐(๐๐กโ๐๏คโ๐๏จ
๐๏ค+๐๏จ,๐๐กโ2๐๎
๐๎+๐๏จ,๐๐กโ2 ๐๎
๐๎+๐๓ฐป)
=(๐๐กโ(๐ก2+๐ผ12)๐(๐ก2+๐ผ22)๐โ(๐ก2โ๐ผ12)๐(๐ก2โ๐ผ22)๐
(๐ก2+๐ผ12)๐(๐ก2+๐ผ22)๐+(๐ก2โ๐ผ12)๐(๐ก2โ๐ผ22)๐,๐๐กโ2 (๐ฝ12)๐(๐ฝ22)๐
(๐ฝ12)๐(๐ฝ22)๐+(2๐ก2โ๐ฝ12)๐(2๐ก2โ๐ฝ22)๐,๐๐กโ2(๐พ12)๐(๐พ22)๐
(๐พ12)๐(๐พ22)๐+(2๐ก2โ๐พ12)๐(2๐ก2โ๐พ22)๐)
=(๐๐กโ ๐
๏ฅ๐โ๐๏จ๐
๐๏ค๐+๐๏จ๐,๐๐กโ2๐๎๐
๐๎๐+๐
๏ฉ๐,๐ ๐กโ2 ๐๎๐
๐๎๐+๐๓ฐป๐).
Now,
๐๐ซ=
(
๐๐กโ(๐ก2+๐ผ12)๐โ(๐ก2โ๐ผ12)๐
(๐ก2+๐ผ12)๐+(๐ก2โ๐ผ12)๐,๐๐กโ2 (๐ฝ12)๐
(๐ฝ12)๐+(2๐ก2โ๐ฝ12)๐,๐๐กโ2(๐พ12)๐
(๐พ12)๐+(2๐ก2โ๐พ12)๐
)
=(๐๐กโ๐๏ค1โ๐๏จ1
๐๏ค1+๐๏จ1,๐๐กโ2๐๎1
๐๎1+๐๏จ1,๐๐กโ2 ๐๎1
๐๎1+๐๓ฐป1)
and ๐๐ฌ=(๐๐กโ(๐ก2+๐ผ22)๐โ(๐ก2โ๐ผ12)๐
(๐ก2+๐ผ22)๐+(๐ก2โ๐ผ12)๐,๐๐กโ2 (๐ฝ22)๐
(๐ฝ22)๐+(2๐ก2โ๐ฝ22)๐,๐๐กโ2(๐พ22)๐
(๐พ22)๐+(2๐ก2โ๐พ22)๐)=(๐๐กโ๐๏ฅ2โ๐๏ฉ2
๐๏ฅ2+๐๏ฉ2,๐๐กโ2๐๏ค2
๐๏ค2+๐๏ฉ2,๐๐กโ2 ๐๏ฅ2
๐๏ฅ2+๐๏ฉ2)
hen ๐๐ซโ๐๐๐ฌ=(๐๐กโ๐๏ฅ1โ๐๏ฉ1
๐๏ฅ1+๐๏ฉ1,๐๐กโ2๐๏ค1
๐๏ค1+๐๏ฉ1,๐๐กโ2 ๐๏ฅ1
๐๏ฅ1+๐๏ฉ1)โ๐(๐๐กโ๐๏ฅ2โ๐๏ฉ2
๐๏ฅ2+๐๏ฉ2,๐๐กโ2๐๏ค2
๐๏ค2+๐๏ฉ2,๐๐กโ2 ๐๏ฅ2
๐๏ฅ2+๐๏ฉ2)
=(๐๐กโ๐๏ค1๐๏ค2โ๐๏จ1๐๏จ2
๐๏ค1๐๏ค2+๐๏จ1๐
๏ช2,๐๐กโ2๐๎1๐๎2
๐๎1๐
๏ช2+๐๏จ1๐๏จ2,๐๐กโ2 ๐๎1๐๎2
๐๎1๐๎2+๐๓ฐป1๐
๏ช2)
=(๐๐กโ(๐ก2+๐ผ12)๐(๐ก2+๐ผ22)๐โ(๐ก2โ๐ผ12)๐(๐ก2โ๐ผ22)๐
(๐ก2+๐ผ12)๐(๐ก2+๐ผ22)๐+(๐ก2โ๐ผ12)๐(๐ก2โ๐ผ22)๐,๐๐กโ2 (๐ฝ12)๐(๐ฝ22)๐
(๐ฝ12)๐(๐ฝ22)๐+(2๐ก2โ๐ฝ12)๐(2๐ก2โ๐ฝ22)๐,๐๐กโ2(๐พ12)๐(๐พ22)๐
(๐พ12)๐(๐พ22)๐+(2๐ก2โ๐พ12)๐(2๐ก2โ๐พ22)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
17
whe e ๐๏ฅ1=(๐ก2+๐ผ12)๐,๐๏ฅ2=(๐ก2+๐ผ22)๐,๐๏ฉ1=(๐ก2โ๐ผ12)๐,๐๏ฉ2=(๐ก2โ๐ผ22)๐,๐๏ค1=(๐ฝ12)๐,๐๏ค2=(๐ฝ22)๐,๐๏ฉ1=(2๐ก2โ
๐ฝ12)๐(2๐ก2โ๐ฝ22)๐,๐๏ฉ2=(2๐ก2โ๐ฝ22)๐,๐๏ค1=(๐พ12)๐,๐๏ค2=(๐พ22)๐ ,๐๏ฉ1=(2๐ก2โ๐พ12)๐,๐๏ฉ2=(2๐ก2โ๐พ22)๐.
Hence, we can ob ain ๐(๐ซโ๐๐ฌ)=๐๐ซโ๐๐๐ฌ.
Now, we p o e he pe o mance o (๐ฃ):
๐1๐ซ=
(
๐๐กโ(๐ก2+๐ผ12)๐1โ(๐ก2โ๐ผ12)๐1
(๐ก2+๐ผ12)๐1+(๐ก2โ๐ผ12)๐1,๐๐กโ2 (๐ฝ12)๐1
(๐ฝ12)๐1+(2๐ก2โ๐ฝ12)๐1,๐๐กโ2(๐พ12)๐1
(๐พ12)๐1+(2๐ก2โ๐พ12)๐1
)
=(๐๐กโ๐๏ค1โ๐๏ค1
๐๏ค1+๐๏ค1,๐๐กโ2๐๎ชง1
๐๎ชง1+๐๏ค1,๐๐กโ2 ๐๎ชง1
๐๎ชง1+๐๎ชง1),
๐2๐ซ=
(
๐๐กโ(๐ก2+๐ผ12)๐2โ(๐ก2โ๐ผ12)๐2
(๐ก2+๐ผ12)๐2+(๐ก2โ๐ผ12)๐2,๐๐กโ2 (๐ฝ12)๐2
(๐ฝ12)๐2+(2๐ก2โ๐ฝ12)๐2,๐๐กโ2(๐พ12)๐2
(๐พ12)๐2+(2๐ก2โ๐พ12)๐2
)
=(๐๐กโ๐๏ค1โ๐๏ค1
๐๏ค1+๐๏ค1,๐๐กโ2๐๎ชง1
๐๎ชง1+๐๏ค1,๐๐กโ2 ๐๎ชง1
๐๎ชง1+๐๎ชง1),
whe e ๐๏ฅ1=(๐ก2+๐ผ12)๐1,๐๏ฅ2=(๐ก2+๐ผ22)๐2,๐๏ฅ1=(๐ก2โ๐ผ12)๐1,๐๏ฅ1=(๐ก2โ๐ผ22)๐2,๐๏ค1=(๐ฝ12)๐1,๐๏ค2=(๐ฝ22)๐2,๐๏ฅ1=
(2๐ก2โ๐ฝ12)๐1,๐๏ฅ2=(2๐ก2โ๐ฝ22)๐2,๐๏ค1=(๐พ12)๐2,๐๏ค2=(๐พ22)๐1 ,๐๏ฅ1=(2๐ก2โ๐พ12)๐1,๐๏ฅ2=(2๐ก2โ๐พ22)๐2.
๐1๐ซโ๐๐2๐ซ=(๐๐กโ๐๏ค1โ๐๏ค1
๐๏ค1+๐๏ค1,๐๐กโ2๐๎ชง1
๐๎ชง1+๐๏ค1,๐๐กโ2 ๐๎ชง1
๐๎ชง1+๐๎ชง1)โ๐(๐๐กโ๐๏ค1โ๐๏ค1
๐๏ค1+๐๏ค1,๐๐กโ2๐๎ชง1
๐๎ชง1+๐๏ค1,๐๐กโ2 ๐๎ชง1
๐๎ชง1+๐๎ชง1)
=(๐๐กโ๐๏ค1๐๏ค2โ๐๏ค1๐๏ค2
๐๏ค1๐๏ค2+๐๏ค1๐๏ค2,๐๐กโ2๐๎ชง1๐๎ชง1
๐๎ชง1๐๎ชง2+๐๏ค1๐๏ค2,๐๐กโ2 ๐๎ชง1๐๎ชง2
๐๎ชง1๐๎ชง2+๐๎ชง1๐๎ชง2)
=(๐๐กโ(๐ก2+๐ผ12)๐1+๐2โ(๐ก2โ๐ผ12)๐1+๐2
(๐ก2+๐ผ12)๐1+๐2+(๐ก2โ๐ผ12)๐1+๐2,๐๐กโ2 (๐ฝ12)๐1+๐2
(๐ฝ12)๐1+๐2+(2๐ก2โ๐ฝ12)๐1+๐2,๐๐กโ2(๐พ12)๐1+๐2
(๐พ12)๐1+๐2+(2๐ก2โ๐พ12)๐1+๐2)=(๐1โ๐๐2)๐ซ.
Hence, ๐1๐ซโ๐๐2๐ซ=(๐1โ๐๐2)๐ซ.
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 ๐ซ๐=(๐๐ผ1,๐๐ฝ1,๐๐พ1) in ๐, o ๐=1,2,3,โฆ๐. Then he LPNEWA ope a o is
de ined as: LPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)=๐1๐ซ1โ๐๐2๐ซ2โ๐๐3๐ซ3โ๐โฆโ๐๐๐๐ซ๐, wi h he weigh ec o
๐=(๐1,๐2,๐3,โฆ๐๐)๐,โ๐๐=1
๐๐=1 and ๐๐โ[0,1].
Theo em: 2 Se a collec ion ๐ซ๐=(๐๐ผ๐,๐๐ฝ๐,๐๐พ๐) in ๐, o ๐=1,2,3,โฆ๐, hen he usion alue gene a ed
by LPNEWA ope a o is also a LPNN and
LPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)=(๐๐กโโ(๐ก2+๐ผ๐2)
๐
๐=1 ๐๐โโ(๐ก2โ๐ผ๐2)
๐
๐=1 ๐๐
โ(๐ก2+๐ผ๐2)
๐
๐=1 ๐๐+โ(๐ก2โ๐ผ๐2)
๐
๐=1 ๐๐,๐๐กโ2โ (๐ฝ๐2)๐๐
๐
๐=1
โ (๐ฝ๐2)๐๐
๐
๐=1 +โ (2๐ก2โ๐ฝ๐2)๐๐
๐
๐=1 ,๐๐กโ2โ (๐พ๐2)๐๐
๐
๐=1
โ (๐พ๐2)๐๐
๐
๐=1 +โ (2๐ก2โ๐พ๐2)๐๐
๐
๐=1 ) wi h
he weigh ec o ๐=(๐1,๐2,๐3,โฆ๐๐)๐,โ๐๐=1
๐๐=1 and ๐๐โ[0,1].
P oo : When ๐=2,LPNEWA(๐ซ1,๐ซ2)=๐1๐ซ1โ๐๐2๐ซ2.
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
๐1๐ซ1=(๐๐กโ(๐ก2+๐ผ12)๐1โ(๐ก2โ๐ผ12)๐1
(๐ก2+๐ผ12)๐1+(๐ก2โ๐ผ12)๐1,๐๐กโ2 (๐ฝ12)๐1
(๐ฝ12)๐1+(2๐ก2โ๐ฝ12)๐1,๐๐กโ2(๐พ12)๐1
(๐พ12)๐1+(2๐ก2โ๐พ12)๐1),
๐2๐ซ2=(๐๐กโ(๐ก2+๐ผ22)๐2โ(๐ก2โ๐ผ22)๐2
(๐ก2+๐ผ22)๐2+(๐ก2โ๐ผ22)๐2,๐๐กโ2 (๐ฝ22)๐2
(๐ฝ22)๐2+(2๐ก2โ๐ฝ22)๐2,๐๐กโ2(๐พ22)๐2
(๐พ22)๐2+(2๐ก2โ๐พ22)๐2).
๐1๐ซ1โ๐๐2๐ซ2
=
(
๐๐ก
โ
(๐ก2+๐ผ12)๐1โ(๐ก2โ๐ผ12)๐1
(๐ก2+๐ผ12)๐1+(๐ก2โ๐ผ12)๐1+(๐ก2+๐ผ22)๐2โ(๐ก2โ๐ผ22)๐2
(๐ก2+๐ผ22)๐2+(๐ก2โ๐ผ22)๐2
1+((๐ก2+๐ผ12)๐1โ(๐ก2โ๐ผ12)๐1
(๐ก2+๐ผ12)๐1+(๐ก2โ๐ผ12)๐1)โ((๐ก2+๐ผ22)๐2โ(๐ก2โ๐ผ22)๐2
(๐ก2+๐ผ22)๐2+(๐ก2โ๐ผ22)๐2),๐๐ก
โ
(2 (๐ฝ12)๐1
(๐ฝ12)๐1+(2๐ก2โ๐ฝ12)๐1)โ( 2 (๐ฝ22)๐2
(๐ฝ22)๐2+(2๐ก2โ๐ฝ22)๐2)
1+((๐ก2โ2 (๐ฝ12)๐1
(๐ฝ12)๐1+(2๐ก2โ๐ฝ12)๐1)โ 2 (๐ฝ22)๐2
(๐ฝ22)๐2+(2๐ก2โ๐ฝ22)๐2),๐๐ก
โ
(2 (๐พ12)๐1
(๐พ12)๐1+(2๐ก2โ๐พ12)๐1)โ( 2 (๐พ22)๐2
(๐พ22)๐2+(2๐ก2โ๐พ22)๐2)
1+((๐ก2โ2 (๐พ12)๐1
(๐พ12)๐1+(2๐ก2โ๐พ12)๐1)โ 2 (๐พ22)๐2
(๐พ22)๐2+(2๐ก2โ๐พ22)๐2)
)
=
(
๐๐กโ((๐ก2+๐ผ12)๐1)โ((๐ก2+๐ผ22)๐2)โ((๐ก2+๐ผ12)๐1)โ((๐ก2+๐ผ22)๐2)
((๐ก2+๐ผ12)๐1)โ((๐ก2+๐ผ22)๐2)+((๐ก2+๐ผ12)๐1)โ((๐ก2+๐ผ22)๐2),๐๐กโ2 (๐ฝ12)๐1โ(๐ฝ22)๐2
(๐ฝ12)๐1(๐ฝ22)๐2+(2๐ก2โ๐ฝ12)๐1โ(2๐ก2โ๐ฝ22)๐2,๐๐กโ2 (๐พ12)๐1โ(๐พ22)๐2
(๐พ12)๐1(๐ฝ๐พ22)๐2+(2๐ก2โ๐พ12)๐1โ(2๐ก2โ๐พ22)๐2
)
Hence,LPNEWA(๐ซ1,๐ซ2)=๐1๐ซ1โ๐๐2๐ซ2,๐ฃ๐๐๐๐ ๐๐๐ ๐=2.
When he consequence is alid o ๐=๐, we ha e
LPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)=
(
๐๐กโโ(๐ก2+๐ผ๐2)
๐๐=1 ๐๐โโ(๐ก2โ๐ผ๐2)
๐๐=1 ๐๐
โ(๐ก2+๐ผ๐2)
๐๐=1 ๐๐+โ(๐ก2โ๐ผ๐2)
๐๐=1 ๐๐,๐๐กโ2โ (๐ฝ๐2)๐๐
๐๐=1
โ (๐ฝ๐2)๐๐
๐๐=1 +โ (2๐ก2โ๐ฝ๐2)๐๐
๐๐=1 ,๐๐กโ2โ (๐พ๐2)๐๐
๐๐=1
โ (๐พ๐2)๐๐
๐๐=1 +โ (2๐ก2โ๐พ๐2)๐๐
๐๐=1
)
.
When ๐=๐+1, we ha e
LPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐+1)=LPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐โ๐๐๐+1๐ซ๐+1)
=
(
๐๐กโโ(๐ก2+๐ผ๐2)
๐๐=1 ๐๐โโ(๐ก2โ๐ผ๐2)
๐๐=1 ๐๐
โ(๐ก2+๐ผ๐2)
๐๐=1 ๐๐+โ(๐ก2โ๐ผ๐2)
๐๐=1 ๐๐,๐๐กโ2โ (๐ฝ๐2)๐๐
๐๐=1
โ (๐ฝ๐2)๐๐
๐๐=1 +โ (2๐ก2โ๐ฝ๐2)๐๐
๐๐=1 ,๐๐กโ2โ (๐พ๐2)๐๐
๐๐=1
โ (๐พ๐2)๐๐
๐๐=1 +โ (2๐ก2โ๐พ๐2)๐๐
๐๐=1
)
โ๐
(
๐๐กโ(๐ก2+๐ผ๐+1
2)๐๐+1โ(๐ก2โ๐ผ๐+1
2)๐๐+1
(๐ก2+๐ผ๐+1
2)๐+1+(๐ก2โ๐ผ๐+1
2)๐๐+1,๐๐กโ2 (๐ฝ๐+1
2)๐๐+1
(๐ฝ๐+1
2)๐๐+1+(2๐ก2โ๐ฝ๐+1
2)๐๐+1,๐๐กโ2(๐พ๐+1
2)๐๐+1
(๐พ๐+1
2)๐๐+1+(2๐ก2โ๐พ๐+1
2)๐๐+1
)
,
=
(
๐๐กโโ(๐ก2+๐ผ๐2)
๐+1
๐=1 ๐๐โโ(๐ก2โ๐ผ๐2)
๐+1
๐=1 ๐๐
โ(๐ก2+๐ผ๐2)
๐+1
๐=1 ๐๐+โ(๐ก2โ๐ผ๐2)
๐+1
๐=1 ๐๐,๐๐กโ2โ (๐ฝ๐2)๐๐
๐+1
๐=1
โ (๐ฝ๐2)๐๐
๐+1
๐=1 +โ (2๐ก2โ๐ฝ๐2)๐๐
๐+1
๐=1 ,๐๐กโ2โ (๐พ๐2)๐๐
๐+1
๐=1
โ (๐พ๐2)๐๐
๐+1
๐=1 +โ (2๐ก2โ๐พ๐2)๐๐
๐+1
๐=1
)
.
The e o e, LPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐) holds o any ๐.
Hence, Theo em 2 is p o ed.
Theo em: 3 Se a collec ion ๐ซ๐=(๐๐ผ๐,๐๐ฝ๐,๐๐พ๐), ๐ฌ๐=(๐๐ผ๏ฅ๐,๐๐ฝ๏ฉ๐,๐๐พ๏ฅ๐)in ๐, o ๐=1,2,3,โฆ๐, be wo LPNNs
wi h he weigh ec o ๐=(๐1,๐2,๐3,โฆ๐๐)๐,โ๐๐=1
๐๐=1 and ๐๐โ[0,1]. We can deduce he
ollowing p ope ies:
i. ๐ผ๐๐๐๐๐๐ก๐๐๐๐ฆ: ๐ผ๐ ๐ซ๐=(๐๐ผ๐,๐๐ฝ๐,๐๐พ๐)=(๐๐ผ,๐๐ฝ,๐๐พ) ๐๐๐ ๐๐๐ ๐,๐กโ๐๐
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(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)=(๐๐ผ,๐๐ฝ,๐๐พ).
ii. ๐๐๐๐๐ก๐๐๐๐๐๐ก๐ฆ:๐ผ๐ ๐ซ๐โค ๐ฌ๐,๐กโ๐๐ก ๐๐ ,๐๐ผ๐โค๐๐ผ๏ฅ๐,๐๐ฝ๐โฅ๐๐ฝ๏ฉ๐,๐๐๐ ๐๐พ๐โฅ๐๐พ๏ฅ๐,๐กโ๐๐ ๐ค๐ โ๐๐ฃ๐
LPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)โคLPNEWA(๐ฌ1,๐ฌ2,๐ฌ3,โฆ๐ฌ๐).
iii. Boundedness: Suppose ๐ซโ=๐๐๐(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐),๐ซ+=๐๐๐ฅ(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐),๐กโ๐๐
๐ซโโคLPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)โค ๐ซ+.
P oo : Le ๐ซ๐=(๐๐ผ๐,๐๐ฝ๐,๐๐พ๐), ๐ฌ๐=(๐๐ผ๏ฅ๐,๐๐ฝ๏ฉ๐,๐๐พ๏ฅ๐)in ๐, o ๐=1,2,3,โฆ๐, be wo collec ions o LPNNs.
Then
i. ๐คโ๐๐ ๐ซ๐=(๐๐ผ๐,๐๐ฝ๐,๐๐พ๐)=(๐๐ผ,๐๐ฝ,๐๐พ) ๐๐๐ ๐๐๐ ๐,๐๐๐ โ๐๐
LPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)
=
(
๐๐กโโ(๐ก2+๐ผ๐2)
๐
๐=1 ๐๐โโ(๐ก2โ๐ผ๐2)
๐
๐=1 ๐๐
โ(๐ก2+๐ผ๐2)
๐
๐=1 ๐๐+โ(๐ก2โ๐ผ๐2)
๐
๐=1 ๐๐,๐๐กโ2โ (๐ฝ๐2)๐๐
๐
๐=1
โ (๐ฝ๐2)๐๐
๐
๐=1 +โ (2๐ก2โ๐ฝ๐2)๐๐
๐
๐=1 ,๐๐กโ2โ (๐พ๐2)๐๐
๐
๐=1
โ (๐พ๐2)๐๐
๐
๐=1 +โ (2๐ก2โ๐พ๐2)๐๐
๐
๐=1
)
,
=
(
๐๐กโ(๐ก2+๐ผ๐2)โ๐๐
๐
๐=1 โ(๐ก2+๐ผ๐2)โ๐๐
๐
๐=1
(๐ก2+๐ผ๐2)โ๐๐
๐
๐=1 +(๐ก2+๐ผ๐2)โ๐๐
๐
๐=1 ,๐๐กโ2(๐ฝ๐2)โ ๐๐
๐๐=1
(๐ฝ๐2)โ ๐๐
๐๐=1 +(2๐ก2โ๐ฝ๐2)โ ๐๐
๐๐=1 ,๐๐กโ2(๐พ๐2)โ ๐๐
๐๐=1
(๐พ๐2)โ ๐๐
๐๐=1 +(2๐ก2โ๐พ๐2)โ ๐๐
๐๐=1
)
,
=(๐๐ก(๐ผ๐
๐ก),๐๐ก(๐ฝ๐
๐ก),๐๐ก(๐พ๐
๐ก))=๐ซ๐.
ii. Fo ๐ซ๐โค ๐ฌ๐,๐กโ๐๐ ๐๐๐ซ๐โค ๐๐๐ฌ๐.
So, we can ob ain โ๐๐=1
๐๐๐๐ซ๐โค โ๐๐=1
๐๐๐๐ฌ๐. Fo LPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)=โ๐๐=1
๐๐๐๐ซ๐,
๐๐๐ LPNEWA(๐ฌ1,๐ฌ2,๐ฌ3,โฆ๐ฌ๐)=โ๐๐=1
๐๐๐๐ฌ๐, hen we can ge LPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)โค
LPNEWA(๐ฌ1,๐ฌ2,๐ฌ3,โฆ๐ฌ๐).
iii. Since ๐ซโ=๐๐๐(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐),๐ซ+=๐๐๐ฅ(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐). By he p e ious p oo (๐๐), we ha e
LPNEWA(๐ซโ,๐ซโ,๐ซโ,โฆ๐ซโ)โคLPNEWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)โคLPNEWA(๐ซ+,๐ซ+,๐ซ+,โฆ๐ซ+).
In addi ion, by he p e ious p oo (๐), we ha e
LPNEWA(๐ซ+,๐ซ+,๐ซ+,โฆ๐ซ+)=๐ซ+,๐๐๐ LPNEWA(๐ซโ,๐ซโ,๐ซโ,โฆ๐ซโ)=๐ซโ.
F om all he abo e, we can ge ๐ซโโคLPNEWA(๐ซ+,๐ซ+,๐ซ+,โฆ๐ซ+)=๐ซ+.
4.2 LPN Eins ein o de weigh ed a e age (LPNEOWA) ope a o
De ini ion: 9 Se a LPNNs ๐ซ๐=(๐๐ผ1,๐๐ฝ1,๐๐พ1) in ๐, o ๐=1,2,3,โฆ๐, hen he LPNEOWA ope a o is
de ined as: LPNEOWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)=๐1๐ซ๐(1)โ๐๐2๐ซ๐(2)โ๐๐3๐ซ๐(3)โ๐โฆโ๐๐๐๐ซ๐(๐),
whe e (๐(1),๐(2),๐(3),โฆ๐(๐)) is a pe mu a ion o (๐=1,2,3,โฆ๐),๐ ๐ข๐โ ๐กโ๐๐ก ๐ซ๐(๐โ1)โฅ๐ซ๐(๐) o each
๐, wi h he weigh ec o ๐=(๐1,๐2,๐3,โฆ๐๐)๐,โ๐๐=1
๐๐=1 and ๐๐โ[0,1].
Theo em: 4 Se a collec ion ๐ซ๐=(๐๐ผ๐,๐๐ฝ๐,๐๐พ๐) in ๐, o ๐=1,2,3,โฆ๐, 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(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)=
(
๐๐กโโ(๐ก2+๐ผ๐(๐)
2)
๐
๐=1 ๐๐โโ(๐ก2โ๐ผ๐(๐)
2)
๐
๐=1 ๐๐
โ(๐ก2+๐ผ๐(๐)
2)
๐
๐=1 ๐๐+โ(๐ก2โ๐ผ๐(๐)
2)
๐
๐=1 ๐๐,๐๐กโ2โ (๐ฝ๐(๐)
2)๐๐
๐
๐=1
โ (๐ฝ๐(๐)
2)๐๐
๐
๐=1 +โ (2๐ก2โ๐ฝ๐(๐)
2)๐๐
๐
๐=1 ,๐๐กโ2โ (๐พ๐(๐)
2)๐๐
๐
๐=1
โ (๐พ๐(๐)
2)๐๐
๐
๐=1 +โ (2๐ก2โ๐พ๐(๐)
2)๐๐
๐
๐=1
)
,
whe e (๐(1),๐(2),๐(3),โฆ๐(๐)) is a pe mu a ion o (๐=1,2,3,โฆ๐),๐ ๐ข๐โ ๐กโ๐๐ก ๐ซ๐(๐โ1)โฅ๐ซ๐(๐) o each
๐, wi h he weigh ec o ๐=(๐1,๐2,๐3,โฆ๐๐)๐,โ๐๐=1
๐๐=1 and ๐๐โ[0,1]. E iden ly, i ๐=
(1๐,1๐,1๐,โฆ,1๐ ),๐กโ๐ LPNEOWA ope a o will educe o LPNWA ope a o .
Theo em: 5 Se a collec ion ๐ซ๐=(๐๐ผ๐,๐๐ฝ๐,๐๐พ๐), ๐ฌ๐=(๐๐ผ๏ฅ๐,๐๐ฝ๏ฉ๐,๐๐พ๏ฅ๐)in ๐, o ๐=1,2,3,โฆ๐, be wo LPNNs
wi h he weigh ec o ๐=(๐1,๐2,๐3,โฆ๐๐)๐,โ๐๐=1
๐๐=1 and ๐๐โ[0,1]. We can deduce he
ollowing p ope ies:
i. ๐ผ๐๐๐๐๐๐ก๐๐๐๐ฆ: ๐ผ๐ ๐ซ๐=(๐๐ผ๐,๐๐ฝ๐,๐๐พ๐)=(๐๐ผ,๐๐ฝ,๐๐พ) ๐๐๐ ๐๐๐ ๐,๐กโ๐๐
LPNEOWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)=(๐๐ผ,๐๐ฝ,๐๐พ).
ii. ๐๐๐๐๐ก๐๐๐๐๐๐ก๐ฆ:๐ผ๐ ๐ซ๐โค ๐ฌ๐,๐กโ๐๐ก ๐๐ ,๐๐ผ๐โค๐๐ผ๏ฅ๐,๐๐ฝ๐โฅ๐๐ฝ๏ฉ๐,๐๐๐ ๐๐พ๐โฅ๐๐พ๏ฅ๐,๐กโ๐๐
LPNEOWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)โคLPNEWOA(๐ฌ1,๐ฌ2,๐ฌ3,โฆ๐ฌ๐).
iii. Boundedness: Suppose ๐ซโ=๐๐๐(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐),๐ซ+=๐๐๐ฅ(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐),๐กโ๐๐
๐ซโโคLPNEOWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)โค ๐ซ+.
i . Commu a i i y: ๐ฌ๐=(๐๐ผ๏ฅ๐,๐๐ฝ๏ฉ๐,๐๐พ๏ฅ๐) (๐=1,2,3,โฆ๐) is any pe mu a ion o ๐ซ๐=(๐๐ผ๐,๐๐ฝ๐,๐๐พ๐),
hen LPNEOWA(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)=LPNEWOA(๐ฌ1,๐ฌ2,๐ฌ3,โฆ๐ฌ๐). 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 ๐ซ๐=(๐๐ผ1,๐๐ฝ1,๐๐พ1) in ๐, o ๐=1,2,3,โฆ๐. Then he LPNEWG ope a o is
de ined as: LPNEWG (๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)=๐ซ1๐1โ๐๐ซ2๐2โ๐โฆ๐ซ๐๐๐, wi h he weigh ec o ๐=
(๐1,๐2,๐3,โฆ๐๐)๐,โ๐๐=1
๐๐=1 and ๐๐โ[0,1].
Theo em: 6 Se a collec ion ๐ซ๐=(๐๐ผ๐,๐๐ฝ๐,๐๐พ๐) in ๐, o ๐=1,2,3,โฆ๐, hen he usion alue gene a ed
by LPNEWG ope a o is also a LPNN and
LPNEWG(๐ซ1,๐ซ2,๐ซ3,โฆ๐ซ๐)=( ๐๐กโ2โ (๐ผ๐2)๐๐
๐
๐=1
โ (๐ผ๐2)๐๐
๐
๐=1 +โ (2๐ก2โ๐ผ๐2)๐๐
๐
๐=1 ,๐๐กโโ(๐ก2+๐ฝ๐2)
๐
๐=1 ๐๐โโ(๐ก2โ๐ฝ๐2)
๐
๐=1 ๐๐
โ(๐ก2+๐ฝ๐2)
๐
๐=1 ๐๐+โ(๐ก2โ๐ฝ๐2)
๐
๐=1 ๐๐,๐๐กโโ(๐ก2+๐พ๐2)
๐
๐=1 ๐๐โโ(๐ก2โ๐พ๐2)
๐
๐=1 ๐๐
โ(๐ก2+๐พ๐2)
๐
๐=1 ๐๐+โ(๐ก2โ๐พ๐2)
๐
๐=1 ๐๐) wi h
he weigh ec o ๐=(๐1,๐2,๐3,โฆ๐๐)๐,โ๐๐=1
๐๐=1 and ๐๐โ[0,1].
P oo : When ๐=2,LPNEWA(๐ซ1,๐ซ2)=๐ซ1๐1โ๐๐ซ2๐2.
By de ini ion 5, we ge
๐ซ1๐1=(๐๐กโ2(๐ผ12)๐1
(๐ผ12)๐1(2๐ก2โ๐ผ12)๐1,๐๐กโ(๐ก2+๐ฝ12)๐1โ(๐ก2โ๐ฝ12)๐1
(๐ก2+๐ฝ12)๐1+(๐ก2โ๐ฝ12)๐1,๐๐กโ(๐ก2+๐พ12)๐1โ(๐ก2โ๐พ12)๐1
(๐ก2+๐พ12)๐1+(๐ก2โ๐พ12)๐1),
๐ซ2๐2=(๐๐กโ2(๐ผ22)๐2
(๐ผ22)๐2(2๐ก2โ๐ผ22)๐2,๐๐กโ(๐ก2+๐ฝ22)๐2โ(๐ก2โ๐ฝ22)๐2
(๐ก2+๐ฝ22)๐2+(๐ก2โ๐ฝ22)๐2,๐๐กโ(๐ก2+๐พ22)๐2โ(๐ก2โ๐พ22)๐2
(๐ก2+๐พ22)๐2+(๐ก2โ๐พ22)๐2)
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 โญ=(โญ1,โญ2,โญ3,โญ4) 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=(๐1,๐2,๐3) a e in i ed o e alua e acco ding o six ac o s based on he companyโs
pe o mance wi h weigh ec o is ๐ = (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 ๐ฎโฑ=(๐ฎโฑ1, ๐ฎโฑ2, ๐ฎโฑ3, ๐ฎโฑ4) wi h he weigh ec o ๐ฒ๐=
(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 = {๐0 = ๐๐ฅ๐ก๐๐๐๐๐๐ฆ ๐๐๐๐,๐1 = ๐ฃ๐๐๐ฆ ๐๐๐๐,๐2= ๐๐๐๐,๐3= ๐ ๐๐๐โ๐ก๐๐ฆ ๐๐๐๐,๐4= ๐๐๐๐๐ข๐ ,๐5=
๐ ๐๐๐โ๐ก๐๐ฆ ๐๐๐๐,๐6= ๐๐๐๐,๐7= ๐ฃ๐๐๐ฆ ๐๐๐๐,๐8 = ๐๐ฅ๐ก๐๐๐๐๐๐ฆ ๐๐๐๐}. The decision e alua ion ma ix
a e gi en below ( ables 1โ 4).
Table 1: The i s decision make ๐1 gi es he ollowing alues in he ma ix o m
๐ข๐๐ ๐ข๐๐ ๐ข๐๐ ๐ข๐๐
โญ1 (๐6,๐1,๐3) (๐7,๐1,๐3) (๐8,๐1,๐3) (๐5,๐2,๐3)
โญ2 (๐6,๐2,๐3) (๐6,๐7,๐5) (๐6,๐6,๐3) (๐5,๐3,๐3)
โญ3 (๐6,๐3,๐3) (๐6,๐4,๐3) (๐6,๐1,๐6) (๐5,๐3,๐3)
โญ4 (๐6,๐2,๐2) (๐6,๐1,๐5) (๐8,๐1,๐3) (๐6,๐3,๐3)
Table 2: The second decision make ๐2 gi es he ollowing alues in he ma ix o m
๐ข๐๐ ๐ข๐๐ ๐ข๐๐ ๐ข๐๐
โญ1 (๐6,๐2,๐3) (๐7,๐4,๐3) (๐6,๐1,๐3) (๐6,๐3,๐3)
โญ2 (๐6,๐2,๐3) (๐7,๐1,๐4) (๐6,๐1,๐3) (๐7,๐2,๐3)
โญ3 (๐5,๐3,๐3) (๐5,๐2,๐4) (๐6,๐1,๐3) (๐8,๐3,๐3)
โญ4 (๐6,๐4,๐3) (๐5,๐4,๐3) (๐6,๐1,๐3) (๐5,๐2,๐3)
Table 3: The hi d decision make ๐3 gi es he ollowing alues in he ma ix o m
๐ข๐๐ ๐ข๐๐ ๐ข๐๐ ๐ข๐๐
โญ1 (๐7,๐1,๐3) (๐6,๐2,๐5) (๐3,๐3,๐3) (๐8,๐1,๐3)
โญ2 (๐6,๐4,๐3) (๐6,๐2,๐5) (๐5,๐5,๐5) (๐6,๐2,๐2)
โญ3 (๐6,๐1,๐4) (๐6,๐5,๐3) (๐6,๐5,๐3) (๐6,๐2,๐3)
โญ4 (๐6,๐1,๐5) (๐6,๐5,๐3) (๐4,๐4,๐3) (๐6,๐3,๐3)
Based on he ๐๐๐๐๐๐ and ๐๐๐๐๐๐ 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
๐ข๐๐ ๐ข๐๐ ๐ข๐๐ ๐ข๐๐
โญ1 (๐6.0397,๐1.1230,๐3) (๐6.6098,๐1.4128,๐3.5219) (๐8,๐1.1862,๐3) (๐8,๐1.2946,๐3)
โญ2 (๐5.7547,๐1.17956,๐3) (๐6.2061,๐2.6956,๐4.6548) (๐5.5650,๐2.5979,๐3.5219) (๐5.3915,๐1.6758,๐2.6612)
โญ3 (๐5.4334,๐1.81.42,๐3.2762) (๐5.4334,๐2.4168,๐3.3049) (๐5.7547,๐1.3046,๐3.9515) (๐5.3915,๐1.6758,๐3)
โญ4 (๐5.7547,๐1.6443,๐3.0485) (๐5.4334,๐1.6460,๐3.6536) (๐8,๐1.2478,๐3) (๐5.4334,๐1.9888,๐3)
S ep 2: The o al collec i e LPNN โญ๐ (๐ = 1,2, โฆ, ๐) can be ob ained by he LPNEWA ope a o :
โญ1=(๐8,๐2.3655,๐3.1190);โญ2=(๐5.0618,๐3.1022,๐3.3464);
โญ3=(๐4.7291,๐3.2301,๐3.3319); โญ4= (๐7.6441,๐3.0416,๐3.1604)
S ep 3: By using de ini ion 5, we calcula e he expec ed alues o ๐(โญ๐) o โญ๐ (๐ = 1,2,3,4)
๐(โญ1)=6.1285; ๐(โญ2)= 4.7889 ;๐(โญ3)=4.6486 ; ๐(โญ4)=5.8649.
Based on he expec ed alues, ou al e na i es can be anked โญ1 โป โญ4โป โญ2โป โญ3,. Thus, company
โญ3 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
๐ข๐๐ ๐ข๐๐ ๐ข๐๐ ๐ข๐๐
โญ1 (๐3.5005,๐1.3752,๐2.848) (๐3.7147,๐2.558,๐3.391) (๐3.589,๐1.585,๐3.391) (๐3.392,๐1.418,๐2.848)
โญ2 (๐3.4122,๐2.4606,๐2.848) (๐3.5091,๐4.968,๐4.447) (๐3.327,๐4.471,๐3.391) (๐3.197,๐2.116,๐2.667)
โญ3 (๐3.3187,๐2.5533,๐3.089) (๐3.3187,๐3.534,๐4.447) (๐3.412,๐2.442,๐4.388) (๐3.197,๐2.116,๐2.848)
โญ4 (๐3.4122,๐2.6547,๐3.111) (๐3.3187,๐3.307,๐3.785) (๐3.685,๐1.991,๐2.848) (๐3.319,๐2.542,๐2.848)
S ep 2: The o al collec i e LPNN โญ๐ (๐ = 1,2, โฆ, ๐) can be ob ained by he LPNEWA ope a o :
โญ1=(๐4.8605,๐1.5982,๐2.593);โญ2=(๐4.6882,๐3.4566,๐3.093);
โญ3=(๐4.6193,๐2.4321,๐3.054); โญ4= (๐4.7284,๐2.2984,๐2.803)
S ep 3: By using de ini ion 5, we calcula e he expec ed alues o ๐(โญ๐) o โญ๐ (๐ = 1,2,3,4)
๐(โญ1)=5.1103; ๐(โญ2)= 4.6356 ;๐(โญ3)=4.8338 ; ๐(โญ4)=4.9402.
Based on he expec ed alues, ou al e na i es can be anked โญ1 โป โญ4โป โญ3โป โญ2. Thus, company
โญ2 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 โญ3 and โญ2 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: โญ1 โป โญ4โป โญ2โป โญ3 o LPNEWA, and โญ1 โป โญ4โป โญ3โป โญ2. 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 [25โ27], he p oposed LPNN-based app oach can e ec i ely ep esen
and handle pu ely linguis ic e alua ion aluesโsome 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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