index theorem

• 指数定理

index theorem的用法和样例：

例句

1. This paper discusses the existence of multiple positive solutions of a class of nonlinear singular boundary value problems by means of the fixed point index Theorem on cones.
   摘要利用锥映射的不动点指数定理，研究了一类非线性奇异边值问题多个正解的存在性问题。