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20162025
most citedInhomogeneous Hopf-Oleĭnik Lemma and Applications. Part IV: Sharp Krylov Boundary Gradient Type Estimates for Solutions to Fully Nonlinear Differential Inequalities with unbounded coefficients and boundary data

3 citations · 3 across the 7 of their papers we have counts for

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math.AP2025

A quantitative Hopf-Oleinik lemma for degenerate fully nonlinear operators and applications to free boundary problems

Davide Giovagnoli, Enzo Maria Merlino, Diego Moreira

We prove a quantitative inhomogeneous Hopf-Oleinik lemma for viscosity solutions of and, more generally, for viscosity supersolutions of $|\nabla u|^α\…

math.AP2023

Existence and optimal regularity theory for weak solutions of free transmission problems of quasilinear type via Leray-Lions method

Diego R. Moreira, Harish Shrivastava

We study existence and regularity of weak solutions for the following PDE $$ -\dive(A(x,u)|\nabla u|^{p-2}\nabla u) = f(x,u),\;\;\mbox{in $B_1$}. $$ where $A(x,s) = A_+(x)χ_{\{s>0\…

math.AP2022

Flipping regularity via the Harnack approach and applications to nonlinear elliptic problems

Diego R. Moreira, Edgard A. Pimentel

We prove an abstract result ensuring that one-sided geometric control yields two-sided estimates for functions satisfying general conditions. Our findings resonate in the context o…

math.AP2022

Tangential contact of free boundaries and the fixed boundary for variational solutions to a free transmission Problem

Diego Moreira, Harish Shrivastava

In this article we study functionals of the following type here $A(x,u)= A_+(x)χ_{\{u>0\}}+A_-(x) χ_…

math.AP2022

Tangential contact between free and fixed boundaries for variational solutions to variable coefficient Bernoulli type Free boundary problems

Diego Moreira, Harish Shrivastava

In this paper, we show that given appropriate boundary data, the free boundary and the fixed boundary of minimizers of functionals of type \eqref{functional} contact each other in…

math.AP2022

Optimal Regularity in Transmission Problems]{Optimal regularity for variational solutions of free transmission problems

Diego Moreira, Harish Shrivastava

In this article we study functionals of the type considered in \cite{HS21}, i.e. here $A(x,u)= A_+(x)χ_{\{u>0\}}+A_…