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A nonlinear characterization of stochastic completeness of graphs

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  • Marcel Schmidt
  • Ian Zimmermann

Abstract

We study nonlinear Schrödinger operators on graphs. We construct minimal nonnegative solutions to corresponding semilinear elliptic equations and use them to introduce the notion of stochastic completeness at infinity in a nonlinear setting. We provide characterizations for this property in terms of a semilinear Liouville theorem. It is employed to establish a nonlinear characterization for stochastic completeness, which is a graph version of a recent result on Riemannian manifolds.

Suggested Citation

  • Marcel Schmidt & Ian Zimmermann, 2025. "A nonlinear characterization of stochastic completeness of graphs," Mathematische Nachrichten, Wiley Blackwell, vol. 298(3), pages 925-943, March.
    • Handle: RePEc:bla:mathna:v:298:y:2025:i:3:p:925-943
    DOI: 10.1002/mana.202400436
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