{ "id": "1210.7989", "version": "v1", "published": "2012-10-30T13:01:38.000Z", "updated": "2012-10-30T13:01:38.000Z", "title": "An explicit effect of non-symmetry of random walks on the triangular lattice", "authors": [ "Satoshi Ishiwata", "Hiroshi Kawabi", "Tsubasa Teruya" ], "comment": "24pages, 4figures", "categories": [ "math.PR" ], "abstract": "In the present paper, we study an explicit effect of non-symmetry on asymptotics of the $n$-step transition probability as $n\\rightarrow \\infty$ for a class of non-symmetric random walks on the triangular lattice. Realizing the triangular lattice into $\\mathbb{R}^2$ appropriately, we observe that the Euclidean distance in $\\mathbb{R}^2$ naturally appears in the asymptotics. We characterize this realization from a geometric view point of Kotani-Sunada's standard realization of crystal lattices. As a corollary of the main theorem, we prove that the transition semigroup generated by the non-symmetric random walk approximates the heat semigroup generated by the usual Brownian motion on $\\mathbb{R}^2$.", "revisions": [ { "version": "v1", "updated": "2012-10-30T13:01:38.000Z" } ], "analyses": { "subjects": [ "60J10", "60F05", "60G50" ], "keywords": [ "triangular lattice", "explicit effect", "non-symmetry", "non-symmetric random walk approximates", "geometric view point" ], "note": { "typesetting": "TeX", "pages": 24, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1210.7989I" } } }