摘要
We consider the system -epsilon(2)Delta u W(x)u = Q(u)(u, v) in R(N), -epsilon(2)Delta v V(x)v = Q(v)(u, v) in R(N), u, v is an element of H(1)(R(N)), u(x), v(x) > 0 for each x is an element of R(N), where epsilon > 0, W and V are positive potentials and Q is a homogeneous function with subcritical growth. We relate the number of solutions with the topology of the set where W and V attain their minimum values. In the proof we apply Ljusternik-Schnirelmann theory.
- 出版日期2009-11