3 papers
math.AP2026
A short note on Meyers' theorem
M. A. Perelmuter
We consider weak solutions of the second-order elliptic equation in with Dirichlet…
math.FA2026
On a question of P.R. Chernoff and H.F. Trotter
M. A. Perelmuter
Let be a dissipative operator on a Banach space with a dense domain. It is proved that has a quasi-dissipative extension (possibly in an enlarged Banach space) which genera…
math.AP2024
Second order regularity of solutions of elliptic equations in divergence form with Sobolev coefficients
M. A. Perelmuter
We give estimates for the second derivatives of weak solutions to the Dirichlet problem for equation $\Div(\mathbf{A}\nabla u) = f$ in with Sobolev c…