{ "id": "1910.00041", "version": "v1", "published": "2019-09-30T18:21:54.000Z", "updated": "2019-09-30T18:21:54.000Z", "title": "The matrix-extended $W_{1+\\infty}$ algebra", "authors": [ "Lorenz Eberhardt", "Tomáš Procházka" ], "categories": [ "hep-th", "math-ph", "math.MP" ], "abstract": "We construct a quadratic basis of generators of matrix-extended $\\mathcal{W}_{1+\\infty}$ using a generalization of the Miura transformation. This makes it possible to conjecture a closed-form formula for the operator product expansions defining the algebra. We study truncations of the algebra. An explicit calculation at low levels shows that these are parametrized in a way consistent with the gluing description of the algebra. It is perhaps surprising that in spite of the fact that the algebras are rather complicated and non-linear, the structure of their truncations follows very simple gluing rules.", "revisions": [ { "version": "v1", "updated": "2019-09-30T18:21:54.000Z" } ], "analyses": { "keywords": [ "miura transformation", "closed-form formula", "simple gluing rules", "operator product expansions defining", "quadratic basis" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }