supported by NSFC(Nos.12161141003,11931006);supported by NSFC(Nos.11801520,12171436,12271489);supported by NSFC(No.11601527)。
For k given graphs H_1,...,H_k with k≥2,the k-color Ramsey number R(H_(1),...,H_(k)) represents the minimum integer N with the following property:if the edges of the complete graph K_(N) are colored with k colors,the...
partially supported by RGC(No.17307420);supported by NSFC(No.12471077)。
In order to find closed form solutions of nonintegrable nonlinear ordinary differential equations,numerous tricks have been proposed.The goal of this short review is to explain how a theorem of Eremenko on meromorphic...