Two-phase problems for linear elliptic operators with variable coefficients: Lipschitz free boundaries are \(C^{1,\gamma}\)
The authors investigate the regularity of the free boundary in two-phase problems for uniformly elliptic operators with variable coefficients. The authors prove \(C^{1,\gamma}\) regularity of Lipschitz free boundaries.
scientific article; zbMATH DE number 2102298