Nonrelativistic limit of normalized solutions of nonlinear Dirac equations on noncompact metric graphs with localized nonlinearities

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Hauptverfasser: He, Zhentao, Ji, Chao
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Veröffentlicht: 2025
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_version_ 1866911216459317248
author He, Zhentao
Ji, Chao
author_facet He, Zhentao
Ji, Chao
contents In this paper, we study the nonrelativistic limit of normalized solutions for the following nonlinear Dirac equation (NLDE) on noncompact metric graph $\G$ with finitely many edges and a non-empty compact core $\K$ \begin{equation*} \D u - ωu= χ_\K\abs{u}^{p-2}u, \end{equation*} under the constraint $\int_\G\abs{u}^2\,dx = 1$, where $\D$ is the Dirac operator on $\G$, $u: \G \to \mathbb{C}^2$, the frequency $ω\in \mathbb{R}$ is part of the unknowns which arises as a Lagrange multiplier, $χ_\K$ is the characteristic function of the compact core $\K$, and $2<p<6$. To the best of our knowledge, this is the first study to investigate the nonrelativistic limit of normalized solutions to (NLDE) on metric graphs.
format Preprint
id arxiv_https___arxiv_org_abs_2510_15378
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Nonrelativistic limit of normalized solutions of nonlinear Dirac equations on noncompact metric graphs with localized nonlinearities
He, Zhentao
Ji, Chao
Analysis of PDEs
35R02, 81Q35, 58E05, 35Q40
In this paper, we study the nonrelativistic limit of normalized solutions for the following nonlinear Dirac equation (NLDE) on noncompact metric graph $\G$ with finitely many edges and a non-empty compact core $\K$ \begin{equation*} \D u - ωu= χ_\K\abs{u}^{p-2}u, \end{equation*} under the constraint $\int_\G\abs{u}^2\,dx = 1$, where $\D$ is the Dirac operator on $\G$, $u: \G \to \mathbb{C}^2$, the frequency $ω\in \mathbb{R}$ is part of the unknowns which arises as a Lagrange multiplier, $χ_\K$ is the characteristic function of the compact core $\K$, and $2<p<6$. To the best of our knowledge, this is the first study to investigate the nonrelativistic limit of normalized solutions to (NLDE) on metric graphs.
title Nonrelativistic limit of normalized solutions of nonlinear Dirac equations on noncompact metric graphs with localized nonlinearities
topic Analysis of PDEs
35R02, 81Q35, 58E05, 35Q40
url https://arxiv.org/abs/2510.15378