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Autores principales: Fortunati, Alessandro, Pacella, Filomena
Formato: Preprint
Publicado: 2026
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Acceso en línea:https://arxiv.org/abs/2603.19446
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author Fortunati, Alessandro
Pacella, Filomena
author_facet Fortunati, Alessandro
Pacella, Filomena
contents In this paper we study an overdetermined problem which is directly related to the well known torsion problem studied by J. Serrin. A perturbed version of the latter is tackled by using asymptotic series as well as tools borrowed from the celebrated Nekhoroshev Theorem. In a similar fashion to this class of results, we establish the existence of infinitely many approximants for the perturbed problem's solution, whose approximation error is so small which can be regarded as negligible for practical applications. The approach is fully constructive and this feature is demonstrated via an example in the final section.
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publishDate 2026
record_format arxiv
spellingShingle A Constructive Approach to a Class of Overdetermined Problems
Fortunati, Alessandro
Pacella, Filomena
Analysis of PDEs
Functional Analysis
Primary: 35N25, 35B20. Secondary: 35J25, 37J40
In this paper we study an overdetermined problem which is directly related to the well known torsion problem studied by J. Serrin. A perturbed version of the latter is tackled by using asymptotic series as well as tools borrowed from the celebrated Nekhoroshev Theorem. In a similar fashion to this class of results, we establish the existence of infinitely many approximants for the perturbed problem's solution, whose approximation error is so small which can be regarded as negligible for practical applications. The approach is fully constructive and this feature is demonstrated via an example in the final section.
title A Constructive Approach to a Class of Overdetermined Problems
topic Analysis of PDEs
Functional Analysis
Primary: 35N25, 35B20. Secondary: 35J25, 37J40
url https://arxiv.org/abs/2603.19446