Regularity and numerical approximation of fractional elliptic differential equations on compact metric graphs

David Bolin, Mihály Kovács, Vivek Kumar +1

The fractional differential equation $L^{\beta }u=f$ posed on a compact metric graph is considered, where $\beta >0$ and $L={\kappa }^2-\nabla (a\nabla )$ is a second-order elliptic operator equip…