{ "id": "2010.16135", "version": "v1", "published": "2020-10-30T09:15:29.000Z", "updated": "2020-10-30T09:15:29.000Z", "title": "Geometric integration by parts and Lepage equivalents", "authors": [ "Marcella Palese", "Olga Rossi", "Fabrizio Zanello" ], "comment": "37 pages", "categories": [ "math-ph", "math.MP" ], "abstract": "We compare the integration by parts of contact forms - leading to the definition of the interior Euler operator - with the so-called canonical splittings of variational morphisms. In particular, we discuss the possibility of a generalization of the first method to contact forms of lower degree. We define a suitable Residual operator for this case and, working out an original idea conjectured by Olga Rossi, we recover the Krupka-Betounes equivalent for first order field theories. A generalization to the second order case is discussed.", "revisions": [ { "version": "v1", "updated": "2020-10-30T09:15:29.000Z" } ], "analyses": { "subjects": [ "53Z05", "58A20", "58Z05" ], "keywords": [ "geometric integration", "lepage equivalents", "contact forms", "first order field theories", "interior euler operator" ], "note": { "typesetting": "TeX", "pages": 37, "language": "en", "license": "arXiv", "status": "editable" } } }