Infinitely many sign-changing solutions for system of p-Laplace equations in R N In this paper we consider the system of p-Laplacian equations in RNΔpuj+μj(x)|uj|p?2uj=∑i=1kβij|ui|q|uj|q?2ujin?RN,uj(x)→0as?|x|→∞,j=1,…,k,where 1pN, max{2,p}2qp?=NpN?p,βij...