degenerated system meaning in Chinese

退化系

Existence of solutions on a quasilinear degenerate system arising in semiconductors theory
一类退化半导体方程弱解存在性的研究
Using the method of parabolic regularization , we first study the existence of the optimal control of nondegenerate systems governed by where and jn is mollifying sequence in r . by de giorgi - nash ' s technique , we obtain some uniformly estimates of solutions of regularizing prob - lem , from compactness , we prove the existence of the optimal control of degenerate system by a approximate approach
利用抛物正则化方法，我们首先研究了非退化系统最优控制的存在性，其中而j _ n是r上的软化子。利用degiorgi - nash技巧，对正则化问题的解可以得到一些一致估计，利用紧性，通过一个逼近过程我们得到了退化系统最优控制的存在性。