Quasilinear Schrodinger-Poisson equations involving a nonlocal term and an integral constraint

In this paper,we consider a class of quasilinear Schrodinger-Poisson problems of the form∫-(a+b∫_(R)^(N)|■μ|^(2)dx)■μ+V(x)u+Фu-1/2u■(u^(2))-λ|u|^(p-2)u=0 in R^(N),-ΔФ=u^(2),u(x)→0,|x|→∞in R^(N),∫_(R)^(N)|u|^(p)dx=1,where a>0,b≥0,N≥3,λappears as a Lagrangian multiplier,and 4<p<2·2^(*)=4N/N-2.We deal with two different cases simultaneously,namely lim|x|→∞V(x)=1 and limjxj!1 V(x)=V1.By using the method of invariant sets of the descending flow combined with the genus theory,we prove the existence of infinitely many sign-changing solutions.Our results extend and improve some recent work.