On the optimal sets in Polya and Makai type inequalities

In this paper, we examine some shape functionals, introduced by P\'olya and Makai, involving the torsional rigidity and the first Dirichlet-Laplacian eigenvalue for bounded, open and convex sets of $\R^n$. We establish quantitative bounds, which give us key properties and information on the behavior of the optimizing sequences. In particular, we consider two kinds of reminder terms that provide information about the structure of these minimizing sequences, such as information about the thickness.

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Publication Details

Journal
ESAIM Control Optimisation and Calculus of Variations
Published
2026-06-09
DOI
https://doi.org/10.1051/cocv/2026038
Primary Topic
Mathematical Inequalities and Applications
Type
preprint
Field-Weighted Citation Impact
0.00

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preprint

On the optimal sets in Polya and Makai type inequalities

Rossano Sannipoli, Nunzia Gavitone, Vincenzo Amato
ESAIM Control Optimisation and Calculus of Variations
Mathematical Inequalities and Applications
preprint

On the optimal sets in Polya and Makai type inequalities

Rossano Sannipoli, Nunzia Gavitone, Vincenzo Amato
preprint en

Abstract

In this paper, we examine some shape functionals, introduced by P\'olya and Makai, involving the torsional rigidity and the first Dirichlet-Laplacian eigenvalue for bounded, open and convex sets of $\R^n$. We establish quantitative bounds, which give us key properties and information on the behavior of the optimizing sequences. In particular, we consider two kinds of reminder terms that provide information about the structure of these minimizing sequences, such as information about the thickness.

ESAIM Control Optimisation and Calculus of Variations
Istituto Nazionale di Alta Matematica "Francesco Severi", Ministero dell’Istruzione, dell’Università e della Ricerca, Gruppo Nazionale per l'Analisi Matematica, la Probabilità e le loro Applicazioni
Openalex Percentile: Top 99%
Mathematical Inequalities and Applications
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