Solutions with prescribed mass to Kirchhoff equations: generic double-behaviour nonlinearities

Abstract

In this paper, we study the Kirchhoff equation {-(a+b integral(3)(R)|del u|(2)dx)Delta u+lambda u=f(u), x is an element of R-3, integral(3)(R)|u|(2)dx=c(2), x is an element of R-3, (lambda,u)is an element of RxH(1)(R-3), where a,b,c>0, lambda is an element of R is unknown as a Lagrange multiplier. We provide generic assumptions about the nonlinearity f(u), which correspond to the L-2-subcritical, L-2-critical, L-2-supercritical, and Sobolev critical cases. Making use of the minimization of the energy functional over a linear combination of the Nehari and Pohozaev constraints intersected with the product of the closed balls in L-2(R-3) of radii c, we prove the existence of normalized solutions to the Kirchhoff equation.In this paper, we study the Kirchhoff equation {-(a+b integral(3)(R)|del u|(2)dx)Delta u+lambda u=f(u), x is an element of R-3, integral(3)(R)|u|(2)dx=c(2), x is an element of R-3, (lambda,u)is an element of RxH(1)(R-3), where a,b,c>0, lambda is an element of R is unknown as a Lagrange multiplier. We provide generic assumptions about the nonlinearity f(u), which correspond to the L-2-subcritical, L-2-critical, L-2-supercritical, and Sobolev critical cases. Making use of the minimization of the energy functional over a linear combination of the Nehari and Pohozaev constraints intersected with the product of the closed balls in L-2(R-3) of radii c, we prove the existence of normalized solutions to the Kirchhoff equation.