Existence of infinitely many solutions for a class of linear perturbed symmetric elliptic problem with nonhomogeneous boundary
The author considers the linear perturbed symmetric problem \[ \begin{cases} -\Delta u =\lambda_ku+p(x,u)+f(x), & x\in\Omega,\\ u=g(x), & x\in\partial \Omega. \end{cases} \] The existence of infinitely many solutions is proved by Bolle's perturbation method.
scientific article; zbMATH DE number 6097060
scientific article