Author(s)

Youyan Wan

Department of Mathematics Jianghan University Wuhan, Hubei, China.

We consider  the following nonlinear schr?dinger equation
-?u+λV(x)u=f(x,u)withu∈H^1 (R^N) and u?0,(*)
whereλ>0 and f(x,s) is asymptotically linear withrespect to sat origin and infinity. The potential V(x) satisfies V(x)≥V_0>0for all x∈R^N and (_|x|→+∞^lim)V(x)=V (∞)∈(0,+∞). We provethat problem (*) has two connected sets of positive and negative  solutions inR×W^(2,p) (R^N)for somep∈[2,+∞)∩(N/2,+∞).

Bifurcation, asymptotically linear, Fredholm opera- tor of index zero

Wan, Y. (2012) Branches of solutions for an asymptotically linear elliptic problem on R^N. Open Journal of Applied Sciences, 2, 187-194. doi: 10.4236/ojapps.2012.24B043.