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arXiv · 2609.15486

Asymptotic Behavior of Least Energy Solutions to the Lane--Emden Problem on Metric Graphs

Kazuki Sato
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Abstract

In this paper, we study the asymptotic behavior of least energy solutions to Lane--Emden problems on compact metric graphs as $p \to \infty$. For the problem with Dirichlet--Kirchhoff boundary conditions, we characterize the limiting variational problem in terms of the Dirichlet--Kirchhoff Green function and show that least energy positive solutions converge, up to a subsequence, to a normalized Green function centered at a maximizer of the diagonal Green function. We also show that their maximum points approach the set of such maximizers. For the problem with Kirchhoff--Neumann boundary conditions, we characterize the limiting variational problem on compact metric graphs without cycles and show that least energy solutions converge, up to a subsequence, to a limiting profile associated with a pair of points realizing the maximal distance on the graph. Moreover, the distance between their maximum and minimum points converges to the maximal distance on the graph.

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Kazuki Sato. 2026-09-14. Asymptotic Behavior of Least Energy Solutions to the Lane--Emden Problem on Metric Graphs. https://arxiv.org/abs/2609.15486

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