{ "id": "2406.17922", "version": "v1", "published": "2024-06-25T20:09:40.000Z", "updated": "2024-06-25T20:09:40.000Z", "title": "On induced L-infinity action of diffeomorphisms on Cochains", "authors": [ "Andrey Losev", "Dmitrii Sheptunov", "Xin Geng" ], "categories": [ "math-ph", "math.MP" ], "abstract": "One of the approaches to quantum gravity is to formulate it in terms of De Rham algebra, choose a triangulation of space-time, and replace differential forms by cochains (that form a finite dimensional vector space). The key issue of general relativity is the action of diffeomorphisms of space-time on fields. In this paper, we induce the action of diffeomorphisms on cochains by homotopy transfer (or, equivalently, BV integral) that leads to a $L_{\\infty}$ action. We explicitly compute this action for the space-time being an interval, a circle, and a square.", "revisions": [ { "version": "v1", "updated": "2024-06-25T20:09:40.000Z" } ], "analyses": { "keywords": [ "induced l-infinity action", "diffeomorphisms", "finite dimensional vector space", "space-time", "replace differential forms" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }