相关基金:supported by NSFC(11101358); the NSF of Fujian(2011J01026 and 2011J05014); the Fujian Education Departmen(JA11165 and JA12208); the Doctor Foundation of Zhangzhou Normal University(201008)
This paper deals with recurrent configurations of the Abelian sandpile model on graphs. We characterize how the recurrent configurations of a graph change when an edge is added.