{ "id": "2010.14905", "version": "v1", "published": "2020-10-28T11:56:12.000Z", "updated": "2020-10-28T11:56:12.000Z", "title": "Localization of the formation of singularities in multidimensional compressible Euler equations", "authors": [ "Olga Rozanova" ], "comment": "21 pages, 2 figures", "categories": [ "math.AP", "math-ph", "math.MP" ], "abstract": "We consider the Cauchy problem with smooth data for compressible Euler equations in many dimensions and concentrate on two cases: solutions with finite mass and energy and solutions corresponding to a compact perturbation of a nontrivial stationary state. We prove the blowup results using the characteristics of the propagation of the solution in space and find upper and lower bounds for the density of a smooth solution in a given region of space in terms of the initial data. To solve the problems, we introduce a special family of integral functionals and study their temporal dynamics.", "revisions": [ { "version": "v1", "updated": "2020-10-28T11:56:12.000Z" } ], "analyses": { "subjects": [ "76N10", "35L60", "35L67" ], "keywords": [ "multidimensional compressible euler equations", "singularities", "localization", "nontrivial stationary state", "smooth data" ], "note": { "typesetting": "TeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable" } } }