| In the first chapter,we briefly introduce the research background and the main results.In the second chapter,we study the following nonlinear mass supercritical Kirchhoff equation(?)(P1)satisfying the normalized constrain ∫RN|u|2dx=m in the case 1≤N≤ 3 and a,b,m>0 prescribed.The nonlinearity f is more general.Under some mild assumptions,we establish the existence of ground state when 1≤N≤3 and obtain infinitely many radial solutions when 2≤N≤3 by constructing a particular bounded Palais-Smale sequence.In the third chapter,we consider the following nonlinear mass supercritical Schr(?)dingerPoisson-Slater equation-Δu+μu-γ(|x|-1*|u|2)u-af(u)=0 x∈R3(P2)satisfying the normalized constrain ∫R3|u|2dx=m,and m>0 prescribed.The nonlinearity f is super-critical.Under some mild assumptions,we establish the existence of ground state and infinitely many radial solutions by constructing a particular bounded Palais-Smale sequence when γ<0,a>0.Meanwhile,we obtain the non-existence result in the caseγ<0,a<0 and the existence result when γ>0,a<0 via variational methods. |