Մաթեմատիկայի և մեխանիկայի ֆակուլտետ
Faculty of Mathematics and Mechanics
Training of specialists-mathematicians started in the YSU in 1924, in the physical - mathematical subsection of Social Science Department which became Physical-mathematical Department in 1993.:
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Kh. A. Khachatryan , A. R. Hakobyan
On nontrivial solvability of one class of nonlinear integral equations with conservative kernel on the positive semi-axis
2022 | Article
Уч. записки ЕГУ, сер. Физика и Математика, 56:1 (2022), 7–18
Kh. A. Khachatryan , A.Kh. Khachatryan, H.S. Petrosyan
Solvability of Two-Dimensional Integral Equations with Monotone Nonlinearity
2021 | Article
Journal of Mathematical Sciences. New York. Vol. 57, no. 5 , pp. 720-731, (2021)

https://link.springer.com/article/10.1007/s10958-021-05512-1
Kh.A. Khachatryan , H.S. Petrosyan
On the solvability of a class of nonlinear Urysohn integral equations on the positive half-line
2021 | Article
The Bulletin of Irkutsk State University. Series Mathematics. Vol.36 ,pp. 57–68 , (2021)

http://www.mathnet.ru/php/archive.phtml?wshow=paper&jrnid=iigum&paperid=452&option_lang=eng
Kh.A. Khachatryan , H.S. Petrosyan
On Solvability of a Class of Multidimensional Integral Equations in the Mathematical Theory of Geographic Distribution of an Epidemic
2021 | Article
Journal of Contemporary Mathematical Analysis. vol. 56, iss. 3, pp. 143–157 (2021)

https://link.springer.com/article/10.3103/S1068362321030055
Kh.A. Khachatryan , A.Kh. Khachatryan, H.S. Petrosyan
On Positive Bounded Solutions of One Class of Nonlinear Integral Equations with the Hammerstein–Nemytskii Operator
2021 | Article
Differential Equations. vol. 57, iss. 6, pp. 768–779 (2021)

https://link.springer.com/article/10.1134/S0012266121060069
Kh.A. Khachatryan , H.S. Petrosyan
Integral Equations on the Whole Line with Monotone Nonlinearity and Difference Kernel
2021 | Article
Journal of Mathematical Sciences. New York. 255:6 (2021) , pp. 790-804

https://link.springer.com/article/10.1007%2Fs10958-021-05416-0
Kh.A. Khachatryan , A. Kh. Khachatryan, H. S. Petrosyan
Asymptotic behavior of a solution for one class of nonlinear integro-differential equations in the income distribution problem
2021 | Article
Trudy Instituta Matematiki i Mekhaniki URO RAN, 2021, vol. 27, no. 1, pp.188–206

http://journal.imm.uran.ru/
Kh.A. Khachatryan , H.S. Petrosyan
Solvability of a Certain System of Singular Integral Equations with Convex Nonlinearity on the Positive Half-Line
2021 | Article
Russian Mathematics. 65, 27–46

https://link.springer.com/article/10.3103/S1066369X21010035
В. С. Атабекян , Л. Д. Беклемишев, В. М. Бухштабер, С. С. Гончаров, В. С. Губа, Ю. Л. Ершов, В. В. Козлов, И. Г. Лысёнок, С. П. Новиков, Ю. С. Осипов, М. Р. Пентус, В. В. Подольский, А. А. Разборов, В. А. Садовничий, А. Л. Семенов, А. Л. Таламбуца, Д. В. Трещев, Л. Н. Шеврин
Сергей Иванович Адян
2021 | Article
УМН, 76:1(457) (2021), 191–194.
Henrik Shahgholian , Georg S. Weiss, Fotouhi Morteza
A free boundary problem for an elliptic system
2021 | Article
J. Differential Equations 284 (2021), 126–155.