Institutul de Matematică şi Informatică "Vladimir Andrunachievici"
Universitatea de Stat din MoldovaRO EN
Center problem for cubic systems with a bundle of two invariant straight lines and one invariant conic
Authors: Dumitru Cozma
– 0.20 Mb
Abstract
For cubic differential systems with a bundle of two invariant straight lines and one invariant conic it is proved that a weak focus is a center if and only if the first four Liapunov quantities $L_j,\;j=\overline{1,4}$, vanish.E-mail:
Fulltext
– 0.20 Mb
Contents
- Instability of solutions for nonlinear functional differential equations of fifth order with n-deviating arguments
- The stochastic optimal growth problem
- Conjugate sets of loops and quasigroups. DC-quasigroups
- Center problem for cubic systems with a bundle of two invariant straight lines and one invariant conic
- On cyclically-interval edge colorings of trees
- Post-optimal analysis of investment problem with Wald's ordered maximin criteria
- Matrix algorithm for Polling models with PH distribution
- On asymptotic representation of singular solutions of the model elliptic equation near boundary and formulation of singular
- Moment analysis of the telegraph random process
