collaborators

11 papers

math.AP2026

Fully Nonlinear Evolution equations: From Critical Integrability to Schauder Estimates

Junior da Silva Bessa, José Erivamberto L. Oliveira, Patrícia Renata Pereira Regis

We investigate the sharp regularity up to the boundary for viscosity solutions of fully nonlinear parabolic equations with oblique derivative boundary conditions given by \begin{eq…

math.AP2026

Geometric approaches for improved regularity in fully nonlinear parabolic models

Junior da Silva Bessa, João Vitor da Silva, Mayra Soares

In this paper, we derive improved estimates for a class of fully nonlinear parabolic equations with continuous drift and admissible source terms of the form $$ \partial_{t}u - F(D^…

math.AP2026

Fully Nonlinear Elliptic Grad--Mercier Equations in Weighted Orlicz Spaces

Junior da Silva Bessa, Reshmi Biswas, Mayra Soares

In this article, we study the existence and global regularity results for the fully nonlinear elliptic Grad--Mercier type equations with oblique boundary conditions in the context…

math.AP2026

Sharp regularity for degenerate fully nonlinear equations with oblique boundary conditions and Hamiltonian terms

Junior da Silva Bessa, Gleydson C. Ricarte

We prove optimal boundary regularity for viscosity solutions of degenerate fully nonlinear uniformly elliptic equations with oblique boundary conditions and Hamiltonian…

math.AP2026

Gradient regularity for viscosity solutions to quasilinear parabolic equations with mixed singular-degenerate structure

Junior da Silva Bessa, João Vitor da Silva, Ginaldo de Santana Sá

We establish regularity results for viscosity solutions to a class of quasilinear parabolic equations exhibiting nonhomogeneous degeneracy or singularity (a double phase regime) of…

math.AP2026

Optimal regularity up to the boundary for fully nonlinear elliptic equations with double phase degeneracy

Junior da Silva Bessa, Jehan Oh

In this paper we establish optimal regularity up to the boundary for viscosity solutions of fully nonlinear elliptic equations with double phase degeneracy law and obliq…