摘要
In this paper, we give a Z 2 index theory of generalized critical point. By this theory we get a sufficient condition on the existing result of a class functional, as an example we give a new result that the equation-Δu+u=|u| p-1 u, x∈R N,(1)has infinite solutions.
基金
theNationalScienceFoundationofHenanProvince (9740 5 10 0 0 )
SupportedbytheFoun dationofHenanEducationaCommittee(2 0 0 0 110