RUS  ENG
Full version
PEOPLE

Beklaryan Leva Andreevich

Publications in Math-Net.Ru

  1. Development of the new approach for existence of bounded solutions for point-type functional differential equations

    Izv. RAN. Ser. Mat., 89:4 (2025),  3–31
  2. On the metabelianity of the canonical quotient groups of orientation-preserving line homeomorphisms

    Mat. Sb., 216:11 (2025),  3–40
  3. Principles of dualism in the theory of solutions of infinite-dimensional differential equations depending on existing types of symmetries

    Zh. Vychisl. Mat. Mat. Fiz., 65:9 (2025),  1479–1504
  4. Dualism in the theory of soliton solutions II

    Zh. Vychisl. Mat. Mat. Fiz., 64:11 (2024),  2077–2100
  5. Dualism in the theory of soliton solutions

    Zh. Vychisl. Mat. Mat. Fiz., 64:7 (2024),  1196–1216
  6. Existence of bounded soliton solutions in the problem of longitudinal oscillations of an elastic infinite rod in a field with a nonlinear potential of general form

    Zh. Vychisl. Mat. Mat. Fiz., 62:6 (2022),  933–950
  7. Multi-sector bounded-neighbourhood model: agent segregation and optimization of environment characteristics

    Mat. Model., 33:11 (2021),  95–114
  8. Existence of bounded soliton solutions in the problem of longitudinal vibrations of an infinite elastic rod in a field with a strongly nonlinear potential

    Zh. Vychisl. Mat. Mat. Fiz., 61:12 (2021),  2024–2039
  9. A new approach to the question of the existence of bounded solutions of functional differential equations of point type

    Izv. RAN. Ser. Mat., 84:2 (2020),  3–42
  10. Functional differential equations of pointwise type: bifurcation

    Zh. Vychisl. Mat. Mat. Fiz., 60:8 (2020),  1291–1303
  11. On massive subsets in the space of finitely generated groups of diffeomorphisms of the line and the circle in the case of $C^{(1)}$ smoothness

    Fundam. Prikl. Mat., 22:4 (2019),  51–74
  12. Groups of line and circle homeomorphisms. Criteria for almost nilpotency

    Mat. Sb., 210:4 (2019),  27–40
  13. A new approach to the question of existence of periodic solutions for functional differential equations of point type

    Izv. RAN. Ser. Mat., 82:6 (2018),  3–36
  14. Groups of line and circle diffeomorphisms. Criteria for almost nilpotency and structure theorems

    Mat. Sb., 207:8 (2016),  47–72
  15. An agent model of crowd behavior in emergencies

    Avtomat. i Telemekh., 2015, no. 10,  131–143
  16. Groups of line and circle homeomorphisms. Metric invariants and questions of classification

    Uspekhi Mat. Nauk, 70:2(422) (2015),  3–54
  17. The integrated model of eco-economic system on the example of the Republic of Armenia

    Computer Research and Modeling, 6:4 (2014),  621–631
  18. Criteria for the Existence of an Invariant Measure for Groups of Homeomorphisms of the Line

    Mat. Zametki, 95:3 (2014),  335–339
  19. Groups of homeomorphisms of the line. Criteria for the existence of invariant and projectively invariant measures in terms of the commutator subgroup

    Mat. Sb., 205:12 (2014),  63–84
  20. On one class of dynamic transportation models

    Zh. Vychisl. Mat. Mat. Fiz., 53:10 (2013),  1649–1667
  21. Residual Subsets in the Space of Finitely Generated Groups of Diffeomorphisms of the Circle

    Mat. Zametki, 92:6 (2012),  825–833
  22. A single-dynamic model of replacement assets. Main properties

    Zh. Vychisl. Mat. Mat. Fiz., 52:5 (2012),  801–817
  23. The linear theory of functional differential equations: existence theorems and the problem of pointwise completeness of the solutions

    Mat. Sb., 202:3 (2011),  3–36
  24. Quasitravelling waves

    Mat. Sb., 201:12 (2010),  21–68
  25. The structure of a group quasisymmetrically conjugate to a group of affine transformations of the real line

    Mat. Sb., 196:10 (2005),  3–20
  26. Introduction to the theory of functional differential equations and their applications. Group approach

    CMFD, 8 (2004),  3–147
  27. Groups of homeomorphisms of the line and the circle. Topological characteristics and metric invariants

    Uspekhi Mat. Nauk, 59:4(358) (2004),  3–68
  28. Equations of Advanced–Retarded Type and Solutions of Traveling-Wave Type for Infinite-Dimensional Dynamic Systems

    CMFD, 1 (2003),  18–29
  29. On Analogs of the Tits Alternative for Groups of Homeomorphisms of the Circle and of the Line

    Mat. Zametki, 71:3 (2002),  334–347
  30. A single-product dynamic model of replacing production capacities

    Vladikavkaz. Mat. Zh., 4:3 (2002),  22–33
  31. On a criterion for the topological conjugacy of a quasisymmetric group to a group of affine transformations of $\mathbb R$

    Mat. Sb., 191:6 (2000),  31–42
  32. Group singularities of differential equations with deviating argument, and related metric invariants

    Itogi Nauki i Tekhniki. Sovrem. Mat. Pril. Temat. Obz., 67 (1999),  161–182
  33. On the classification of groups of orientation-preserving homeomorphisms of $\mathbb R$. III. $\omega$-projectively invariant measures

    Mat. Sb., 190:4 (1999),  43–62
  34. Specific group properties of differential equations with deviating argument. Introduction to the linear theory

    Mat. Zametki, 63:4 (1998),  483–493
  35. A criterion connected with the structure of the fixed-point set for the existence of a projectively invariant measure for groups of orientation-preserving homeomorphisms of $\mathbb R$

    Uspekhi Mat. Nauk, 51:3(309) (1996),  179–180
  36. On the classification of groups of orientation-preserving homeomorphisms of $\mathbb R$. II. Projectively-invariant measures

    Mat. Sb., 187:4 (1996),  3–28
  37. On the classification of groups of orientation-preserving homeomorphisms of $\mathbb R$. I. Invariant measures

    Mat. Sb., 187:3 (1996),  23–54
  38. On the completeness of solutions of a differential equation with deviating argument that are majorized by exponential functions

    Dokl. Akad. Nauk, 341:6 (1995),  727–730
  39. On the theory of linear differential-delay equations

    Uspekhi Mat. Nauk, 49:6(300) (1994),  193–194
  40. Invariant and projectively invariant measures for groups of orientation-preserving homeomorphisms of $\mathbb{R}$

    Dokl. Akad. Nauk, 332:6 (1993),  679–681
  41. The structure of the quotient group of the group of orientation-preserving homeomorphisms of $\mathbb{R}$ by the subgroup generated by the union of the stabilizers

    Dokl. Akad. Nauk, 331:2 (1993),  137–139
  42. An optimal control problem for systems with deviating argument and its connection with the finitely generated group of homeomorphisms $R$ generated by deviation functions

    Dokl. Akad. Nauk SSSR, 317:6 (1991),  1289–1294
  43. A method for the regularization of boundary value problems for differential equations with deviating argument

    Dokl. Akad. Nauk SSSR, 317:5 (1991),  1033–1037
  44. Reducibility of a differential equation with deviating argument to an equation with commensurable constant deviations

    Mat. Zametki, 44:5 (1988),  561–566
  45. A boundary value problem for a differential equation with deviating argument

    Dokl. Akad. Nauk SSSR, 291:1 (1986),  19–22
  46. A variational problem with retarded argument and its relation to some semigroup of mappings of a segment into itself

    Dokl. Akad. Nauk SSSR, 271:5 (1983),  1036–1040

  47. Osipenko Konstantin Yur'evich (on his 60th birthday)

    Vladikavkaz. Mat. Zh., 12:1 (2010),  68–70

© Steklov Math. Inst. of RAS, 2026