3 papers
math.DS2017
Analyticity of Bounded Solutions of Analytic State-Dependent Delay Differential Equations
Qingwen Hu
We study the analyticity of bounded solutions of systems of analytic state-dependent delay differential equations. We obtain the analyticity of solutions by transforming the system…
math.DS2017
Global Hopf bifurcation for differential-algebraic equations with state dependent delay
Qingwen Hu
We develop a global Hopf bifurcation theory for differential equations with a state-dependent delay governed by an algebraic equation, using the -equivariant degree. We apply…
math.DS2017
Dihedral Molecular Configurations Interacting by Lennard-Jones and Coulomb Forces
Irina Berezovik, Qingwen Hu, Wieslaw Krawcewicz
In this paper, we investigate periodic vibrations of a group of particles with a dihedral configuration in the plane governed by the Lennard-Jones and Coulomb forces. Using the gra…