Zvyagintseva Tatiana E

Publications in Math-Net.Ru

1. Review of the research on the qualitative theory of differential equations at St. Petersburg University. III. Systems with hysteresis nonlinearities. Aizerman's problem for discrete-time systems
   
   Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 12:1 (2025),  3–17
2. Review of the research on the qualitative theory of differential equations at St. Petersburg University. II. Locally qualitative analysis of essentially nonlinear systems
   
   Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 11:3 (2024),  401–418
3. Review of the research on the qualitative theory of differential equations at St. Petersburg University. I. Stable periodic points of diffeomorphisms with homoclinic points, systems with weakly hyperbolic invariant sets
   
   Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 11:2 (2024),  211–227
4. On the conditions for cycles existence in a second-order discrete-time system with sector-nonlinearity
   
   Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 8:1 (2021),  63–72
5. On the problem of Aizerman: Coefficient conditions for an existence of three-period and six-period сycles in a second-order discrete-time system
   
   Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 7:2 (2020),  309–318
6. On the problem of Aizerman: coefficient conditions for an existence of four-period cycle in a second-order discrete-time system
   
   Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 7:1 (2020),  50–59