Thirdly, we consider the n-dimensional Duffing type equation with damping term. By virtue of homeomorphism, extension and fixed point method, we discuss the existence of periodic solution under the nonresonance condition.
再次，我们考虑n维的带有阻尼项的Duffing型方程，运用同胚延拓及不动点方法，讨论了非共振条件下周期解的存在性问题。
参考来源 - Liénard方程和非共振Duffing方程研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The initial boundary value problem of the nonlinear wave equation with the weak damping term 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。
The purpose of this paper is to study the existence of periodic solutions of a class of second order Hamiltonian Systems ith damping term.
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。
The equation of motion of particles has been reduced to the pendulum equation with a damping term and a forced term by using the sine_squared potential.
利用正弦平方势，把粒子运动方程化为具有运动阻尼和周期调制的摆方程。
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