{ "id": "1801.02845", "version": "v1", "published": "2018-01-09T09:15:59.000Z", "updated": "2018-01-09T09:15:59.000Z", "title": "Equivalence of formulations of the MKP hierarchy and its polynomial tau-functions", "authors": [ "Victor Kac", "Johan van de Leur" ], "categories": [ "math-ph", "hep-th", "math.MP", "math.RT", "nlin.SI" ], "abstract": "We give 4 formulations of the Modified KP hierarchy and show that they are equivalent. We also discuss the reductions of the MKP hierarchy to the modified $n$-KdV hierarchies. As a byproduct, we find an astonishingly simple explicit description of all polynomial tau-functions of the KP, the MKP and the $n$-KdV hierarchies, and (implicitly) also for the modified $n$-KdV hierarchy.", "revisions": [ { "version": "v1", "updated": "2018-01-09T09:15:59.000Z" } ], "analyses": { "keywords": [ "mkp hierarchy", "polynomial tau-functions", "kdv hierarchy", "formulations", "equivalence" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }