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Article Dans Une Revue Results in mathematics = Resultate der Mathematik Année : 2019

Harmonic Functions on Metric Graphs Under the Anti-Kirchhoff Law

Résumé

When does an infinite metric graph allow nonconstant bounded harmonic functions under the anti-Kirchhoff transition law? We give a complete answer to this question in the cases where Liouville’s theorem holds, for trees, for graphs with finitely many essential ramification nodes and for generalized lattices. It turns out that the occurrence of nonconstant bounded harmonic functions under the anti-Kirchhoff law differs strongly from the one under the classical continuity condition combined with the Kirchhoff incident flow law.

Dates et versions

hal-04356126 , version 1 (20-12-2023)

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José Lubary, Joachim von Below. Harmonic Functions on Metric Graphs Under the Anti-Kirchhoff Law. Results in mathematics = Resultate der Mathematik, 2019, 74 (1), pp.36. ⟨10.1007/s00025-019-0966-2⟩. ⟨hal-04356126⟩
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