Yanli Lv

activity

20162020

collaborators

3 papers

math.DS2020

Subharmonic Solutions In Reversible Non-Autonomous Differential Equations

Izuchukwu Eze, Carlos Garcia-Azpeitia, Wieslaw Krawcewicz +1

We study the existence of subharmonic solutions in the system $u ¨ (t) = f (t, u (t))$ , where $u (t) \in R^{k}$ and $f$ is an even and $p$ -periodic function in time. Under so…

math.DS2018

Solutions of Fixed Period in the Nonlinear Wave Equation on Networks

Carlos García-Azpeitia, Wieslaw Krawcewicz, Yanli Lv

The wave equation on network is defined by $\partial_{tt} u = Δ_{G} u + g (u)$ , where $u \in R^{n}$ and the graph Laplacian $Δ_{G}$ is an operator on functions on $n$ vertices. We…

math.DS2016

Multiple Periodic Solutions for $Γ$ -symmetric Newtonian Systems

Mieczyslaw Dabkowski, Wieslaw Krawcewicz, Yanli Lv +1

The existence of periodic solutions in $Γ$ -symmetric Newtonian systems $x ¨ = - \nabla f (x)$ can be effectively studied by means of the $(Γ \times O (2))$ -equivariant gradient degr…

Subharmonic Solutions In Reversible Non-Autonomous Differential Equations

Solutions of Fixed Period in the Nonlinear Wave Equation on Networks

Multiple Periodic Solutions for Γ-symmetric Newtonian Systems

Multiple Periodic Solutions for $Γ$ -symmetric Newtonian Systems