不动点方法 meaning in English

fixed point method

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。
Secondly , using fixed point method and lyapunov functional , we establish the sufficient conditions which guarantee the existence , uniqueness , uniform stability , instability and global attractiveness of almost periodic solutions for the equations , so that we obtain some new results
其次，我们利用不动点方法和lyapunov泛函方法，建立了保证该类方程概周期解的存在性、唯一性、一致稳定性、不稳定性及全局吸引性的充分条件，从而得到了一些新的结果。