{ "id": "2506.17094", "version": "v1", "published": "2025-06-20T16:02:22.000Z", "updated": "2025-06-20T16:02:22.000Z", "title": "Nonlinear random perturbations of Reaction-Diffusion Equations", "authors": [ "Sandra Cerrai", "Giuseppina Guatteri", "Gianmario Tessitore" ], "categories": [ "math.PR" ], "abstract": "This paper investigates the well-posedness and small-noise asymptotics of a class of stochastic partial differential equations defined on a bounded domain of $\\mathbb{R}^d$, where the diffusion coefficient depends nonlinearly and non-locally on the solution through a conditional expectation. The reaction term is assumed to be merely continuous and to satisfy a quasi-dissipativity condition, without requiring any growth bounds or local Lipschitz continuity. This setting introduces significant analytical challenges due to the temporal non-locality and the lack of regularity assumptions. Our results represent a substantial advance in the study of nonlinear stochastic perturbations of SPDEs, extending the framework developed in a previous paper.", "revisions": [ { "version": "v1", "updated": "2025-06-20T16:02:22.000Z" } ], "analyses": { "keywords": [ "nonlinear random perturbations", "reaction-diffusion equations", "stochastic partial differential equations", "local lipschitz continuity", "nonlinear stochastic perturbations" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }