Spectral asymptotics for Robin Laplacians on polygonal domains

Magda Khalile

Let $\Omega$ be a curvilinear polygon and $Q_{\Omega }^{\gamma }$ be the Laplacian in $L^2(\Omega )$, $Q_{\Omega }^{\gamma }\psi =-\Delta \psi$, with the Robin boundary condition ${\partial }_{\nu }\psi =\gamma \psi$, where ${\partial }_{\nu }$ is the outer normal…