RT Journal Article T1 Interior Regularity Estimates for a Degenerate Elliptic Equation with Mixed Boundary Conditions A1 Djida, Jean Daniel A1 Fernández, Arran K1 Marchaud fractional derivative K1 Interior regularity K1 Schauder estimate K1 Extension problem K1 Fractional order weighted Sobolev spaces AB The Marchaud fractional derivative can be obtained as a Dirichlet-to–Neumann map via an extension problem to the upper half space. In this paper we prove interior Schauder regularity estimates for a degenerate elliptic equation with mixed Dirichlet–Neumann boundary conditions. The degenerate elliptic equation arises from the Bernardis–Reyes–Stinga–Torrea extension of the Dirichlet problem for the Marchaud fractional derivative PB MDPI YR 2018 FD 2018 LK http://hdl.handle.net/10347/23667 UL http://hdl.handle.net/10347/23667 LA eng NO Djida, J.-D.; Fernandez, A. Interior Regularity Estimates for a Degenerate Elliptic Equation with Mixed Boundary Conditions. Axioms 2018, 7, 65 NO The second author’s research was supported by a student grant from the Engineering and Physical Sciences Research Council, UK DS Minerva RD 24 abr 2026