摘要
构造是一种重要而灵活的思维,利用构造法与反证法、构造法与数学归纳法的联合运用,解决图论中的一类存在性问题。
Construction method is an important and skilful thinking, using construction method and reduction to absurdity and construction method and inductive method to resolve a kinds of existence problem in graph theory.
关键词
构造法
存在性
反证法
数学归纳法
Construction Method
Existence
Reduction to Absurdity
Inductive Method.