activity
20042022
most citedOn the eigenvalues of operators with gaps. Application to Dirac operators

141 citations · 696 across the 45 of their papers we have counts for

collaborators

51 papers

math.AP2022★ 24 cited

Sharp stability for Sobolev and log-Sobolev inequalities, with optimal dimensional dependence

Jean Dolbeault, Maria J. Esteban, Alessio Figalli +2

We prove a sharp quantitative version for the stability of the Sobolev inequality with explicit constants. Moreover, the constants have the correct behavior in the limit of large d…

math.SP2022★ 141 cited

On the eigenvalues of operators with gaps. Application to Dirac operators

Jean Dolbeault, Maria J. Esteban, Eric Séré

This paper is devoted to a general min-max characterization of the eigenvalues in a gap of the essential spectrum of a self-adjoint unbounded operator. We prove an abstract theorem…

math.SP2022

Distinguished self-adjoint extension and eigenvalues of operators with gaps. Application to Dirac-Coulomb operators

Jean Dolbeault, Maria J. Esteban, Eric Séré

We consider a linear symmetric operator in a Hilbert space that is neither bounded from above nor from below, admits a block decomposition corresponding to an orthogonal splitting…

math.AP2022

Which nuclear shape generates the strongest attraction on a relativistic electron? An open problem in relativistic quantum mechanics

Maria J. Esteban, Mathieu Lewin, Eric Séré

In this article we formulate several conjectures concerning the lowest eigenvalue of a Dirac operator with an external electrostatic potential. The latter describes a relativistic…

math.AP2022

Hardy-Littlewood-Sobolev and related inequalities: stability

Jean Dolbeault, Maria J. Esteban

The purpose of this text is twofold. We present a review of the existing stability results for Sobolev, Hardy-Littlewood-Sobolev (HLS) and related inequalities. We also contribute…

math.DS2021

Gagliardo-Nirenberg-Sobolev inequalities on planar graphs

Maria J. Esteban

In this paper we study a family of interpolation Gagliardo-Nirenberg-Sololev inequalities on planar graphs. We are interested in knowing when the best constants in the inequalities…