{ "id": "2009.07319", "version": "v1", "published": "2020-09-15T18:47:13.000Z", "updated": "2020-09-15T18:47:13.000Z", "title": "Asymptotics of Fundamental Solution of Cauchy Problem for Parabolic Equation with Small Parameter and Degeneration", "authors": [ "Mark Rakhel" ], "categories": [ "math.AP" ], "abstract": "In this paper, the method of constructing the asymptotics of the fundamental solution of the Cauchy problem for a degenerate linear parabolic equation with small diffusion is considered. Based on the results obtained in \\cite{dn}, the study extends them over the case of a degenerate equation. As in \\cite{dn}, the main technique that allows us to switch from pseudo-differential equations to partial differential equations is the non-oscillating WKB method. A distinctive feature of this work is a more detailed consideration on the characteristics of the Green's function in terms of symplectic geometry. The most significant intermediate result is presented as a theorem on the properties of the fundamental solution.", "revisions": [ { "version": "v1", "updated": "2020-09-15T18:47:13.000Z" } ], "analyses": { "keywords": [ "fundamental solution", "cauchy problem", "small parameter", "asymptotics", "degenerate linear parabolic equation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }