The shooting method, sub and super solution method, and fixed point theorem were used to study a class of nonlinear diffusion equations with nonlocal boundary value condition in perforated domains.

利用打靶法、上下解方法和不动点定理等工具，研究有孔区域上一类具非局部边值条件的非线性扩散方程。

youdao

In this paper, by using the fixed point index method, the authors discussed the periodic boundary value problem of first order differential systems.

摘要利用锥上的不动点指数研究了一阶非线性常微分方程组的周期边值问题。

youdao

In this paper, by using the fixed point index method, the authors discussed the periodic boundary value problem of first order differential systems.

利用锥上的不动点指数研究了一阶非线性常微分方程组的周期边值问题。

youdao