1·For the first time this paper makes a systematic study about superconvergence of interpolated coefficients finite element method for many semilinear problems and obtains rather integrated results.
本文首次系统地对多种半线性问题，研究了插值系数有限元的超收敛性，获得了比较完整的结果。
2·We study about the approximate controllability of an abstract semilinear control system. By introducing a new sufficient condition, we proved the approximate controllability of the system.
讨论一类抽象半线性控制系统，引入新的充分条件，并证明该系统的近似可控制性。
3·In this paper the "cover layer" phenomenon of solution for a class of singularly perturbed boundary value problems of third order semilinear equation is revealed.
本文揭示了一类三阶半线性方程奇摄动边值问题解的“套层”现象。