{ "id": "1411.7673", "version": "v1", "published": "2014-11-27T18:32:10.000Z", "updated": "2014-11-27T18:32:10.000Z", "title": "On the chirality of a discrete Dirac-Kähler equation", "authors": [ "Volodymyr Sushch" ], "comment": "18 pages. arXiv admin note: substantial text overlap with arXiv:1307.1220", "categories": [ "math-ph", "math.CO", "math.MP" ], "abstract": "We discuss a discrete analogue of the Dirac-K\\\"{a}hler equation in which chiral properties of the continual counterpart are captured. We pay special attention to a discrete Hodge star operator. To build one a combinatorial construction of double complex is used. We describe discrete exterior calculus operations on a double comlex and obtain the discrete Dirac-K\\\"{a}hler equation using these tools. Self-dual and anti-self-dual discrete inhomogeneous forms are presented. The chiral invariance of the massless discrete Dirac-K\\\"{a}hler equation is shown. Moreover, in the massive case we prove that a discrete Dirac-K\\\"{a}hler operator flips the chirality.", "revisions": [ { "version": "v1", "updated": "2014-11-27T18:32:10.000Z" } ], "analyses": { "subjects": [ "39A12", "39A70", "35Q41" ], "keywords": [ "discrete dirac-kähler equation", "discrete exterior calculus operations", "discrete hodge star operator", "pay special attention", "anti-self-dual discrete inhomogeneous forms" ], "note": { "typesetting": "TeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1332559, "adsabs": "2014arXiv1411.7673S" } } }