The initial boundary value problem of the nonlinear wave equation with the weak dampingterm and a source term was studied.
研究了含弱阻尼和源项的非线性波方程初边值问题。
2
The purpose of this paper is to study the existence of periodic solutions of a class of second order Hamiltonian Systems ith dampingterm.
主要研究了一类带有阻尼项的二阶哈密顿系统的周期解的存在性。
3
The equation of motion of particles has been reduced to the pendulum equation with a dampingterm and a forced term by using the sine_squared potential.