Eigenvalues of the Laplace operator with nonlinear boundary conditions

Mihailescu, MihaiMoroșanu, Gheorghe2022-03-29201110.11650/twjm/1500406289http://hdl.handle.net/20.500.14018/10289An eigenvalue problem on a bounded domain for the Laplacian with a nonlinear Robin-like boundary condition is investigated. We prove the existence, isolation and simplicity of the ﬁrst two eigenvalues.engEigenvalues of the Laplace operator with nonlinear boundary conditionsJournal article