Integral representation of solutions to Dirac systems

We introduce a novel integral form for a fundamental set of solutions to one-dimensional Dirac systems with an integrable potential and spectral parameter \(\mu \in \mathbb{C}\). This method enables the construction of solutions that are analytic in \(\mu\) within the half-plane \(\operatorname{Im}...

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Main Author: Łukasz Rzepnicki
Format: Article
Language:English
Published: AGH Univeristy of Science and Technology Press 2025-05-01
Series:Opuscula Mathematica
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Online Access:https://www.opuscula.agh.edu.pl/vol45/3/art/opuscula_math_4519.pdf
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author Łukasz Rzepnicki
author_facet Łukasz Rzepnicki
author_sort Łukasz Rzepnicki
collection DOAJ
description We introduce a novel integral form for a fundamental set of solutions to one-dimensional Dirac systems with an integrable potential and spectral parameter \(\mu \in \mathbb{C}\). This method enables the construction of solutions that are analytic in \(\mu\) within the half-plane \(\operatorname{Im} \mu\gt -r\), \(r\geq 0\) and \(|\mu| \to \infty\). Consequently, we derive estimates for the solutions that remain valid not just within a horizontal strip but throughout the entire half-plane.
format Article
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institution DOAJ
issn 1232-9274
language English
publishDate 2025-05-01
publisher AGH Univeristy of Science and Technology Press
record_format Article
series Opuscula Mathematica
spelling doaj-art-a29795abfa8045879e83c2194c57dc212025-08-20T03:05:57ZengAGH Univeristy of Science and Technology PressOpuscula Mathematica1232-92742025-05-01453403416https://doi.org/10.7494/OpMath.2025.45.3.4034519Integral representation of solutions to Dirac systemsŁukasz Rzepnicki0https://orcid.org/0000-0001-8532-6680Nicolaus Copernicus University in Toruń, Faculty of Mathematics and Computer Science, Chopina 12/18, 87-100 Toruń, PolandWe introduce a novel integral form for a fundamental set of solutions to one-dimensional Dirac systems with an integrable potential and spectral parameter \(\mu \in \mathbb{C}\). This method enables the construction of solutions that are analytic in \(\mu\) within the half-plane \(\operatorname{Im} \mu\gt -r\), \(r\geq 0\) and \(|\mu| \to \infty\). Consequently, we derive estimates for the solutions that remain valid not just within a horizontal strip but throughout the entire half-plane.https://www.opuscula.agh.edu.pl/vol45/3/art/opuscula_math_4519.pdfdirac systemintegrable potentialintegral equationsfundamental system of solutions
spellingShingle Łukasz Rzepnicki
Integral representation of solutions to Dirac systems
Opuscula Mathematica
dirac system
integrable potential
integral equations
fundamental system of solutions
title Integral representation of solutions to Dirac systems
title_full Integral representation of solutions to Dirac systems
title_fullStr Integral representation of solutions to Dirac systems
title_full_unstemmed Integral representation of solutions to Dirac systems
title_short Integral representation of solutions to Dirac systems
title_sort integral representation of solutions to dirac systems
topic dirac system
integrable potential
integral equations
fundamental system of solutions
url https://www.opuscula.agh.edu.pl/vol45/3/art/opuscula_math_4519.pdf
work_keys_str_mv AT łukaszrzepnicki integralrepresentationofsolutionstodiracsystems