【期刊论文】Time periodic solutions to a nonlinear wave equation with x-dependent coefficients

冀书关

【期刊论文】Periodic solutions to one-dimensional wave equation with x-dependent coefficients

冀书关

【期刊论文】Periodic Solutions for a Class of Second-Order Ordinary Differential Equations

冀书关

【期刊论文】Carathéodory`s method for a class of second order differential equations on the half-line

冀书关

【期刊论文】On the existence and multiplicity of positive periodic solutions for first-order vector differential equation

冀书关

【期刊论文】Smooth and Nonsmooth Lipschitz Controls for a Class of Vector Differential Equations

冀书关

【期刊论文】Time-periodic solutions to the one-dimensional wave equation with periodic or anti-periodic boundary conditions

冀书关