activity
20052025
most citedUniqueness and Nondegeneracy of Ground States for in

391 citations · 1.8k across the 147 of their papers we have counts for

collaborators

170 papers

math-ph2025

Liquid Drop Model for Nuclear Matter in the Low Density Limit

Rupert L. Frank, Mathieu Lewin, Robert Seiringer

We consider the liquid drop model with a positive background density in the thermodynamic limit. We prove a two-term asymptotics for the ground state energy per unit volume in the…

math.AP2023★ 1 cited

Degenerate Stability of the Caffarelli-Kohn-Nirenberg Inequality along the Felli-Schneider Curve

Rupert L. Frank, Jonas W. Peteranderl

We show that the Caffarelli-Kohn-Nirenberg (CKN) inequality holds with a remainder term that is quartic in the distance to the set of optimizers for the full parameter range of the…

math.SP2023

Counting Negative Eigenvalues for the Magnetic Pauli Operator

Søren Fournais, Rupert L. Frank, Magnus Goffeng +2

We study the Pauli operator in a two-dimensional, connected domain with Neumann or Robin boundary condition. We prove a sharp lower bound on the number of negative eigenvalues remi…

math-ph2023

The generalized Wehrl entropy bound in quantitative form

Rupert L. Frank, Fabio Nicola, Paolo Tilli

Lieb and Carlen have shown that mixed states with minimal Wehrl entropy are coherent states. We prove that mixed states with almost minimal Wehrl entropy are almost coherent states…

math.AP2023

Minimizers for an aggregation model with attractive-repulsive interaction

Rupert L. Frank, Ryan W. Matzke

We solve explicitly a certain minimization problem for probability measures involving an interaction energy that is repulsive at short distances and attractive at large distances.…

math.AP2023

The sharp Sobolev inequality and its stability: An introduction

Rupert L. Frank

These notes are an extended version of a series of lectures given at the CIME Summer School in Cetraro in June 2022. The goal is to explain questions about optimal functional inequ…