• homeomorphism - 引用次数：7

  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

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