{ "id": "1611.06782", "version": "v1", "published": "2016-11-21T13:38:43.000Z", "updated": "2016-11-21T13:38:43.000Z", "title": "The orthogonal complements of $H^1(\\mathbb{R})$ in its regular Dirichlet extensions", "authors": [ "Yuncong Shen", "Liping Li", "Jiangang Ying" ], "categories": [ "math.PR" ], "abstract": "Consider the regular Dirichlet extension $(\\mathcal{E},\\mathcal{F})$ for one-dimensional Brownian motion, that $H^1(\\mathbb{R})$ is a subspace of $\\mathcal{F}$ and $\\mathcal{E}(f,g)=\\frac12\\mathbf{D}(f,g)$ for $f,g\\in H^1(\\mathbb{R})$. Both $H^1(\\mathbb{R})$ and $\\mathcal{F}$ are Hilbert spaces under $\\mathcal{E}_\\alpha$ and hence there is $\\alpha$-orthogonal compliment $\\mathcal{G}_\\alpha$. We give the explicit expression for functions in $\\mathcal{G}_\\alpha$ which then can be described by another two spaces. On the two spaces, there is a natural Dirichlet form in the wide sense and by the darning method, their regular representations are given.", "revisions": [ { "version": "v1", "updated": "2016-11-21T13:38:43.000Z" } ], "analyses": { "subjects": [ "31C25", "60J55", "60J60" ], "keywords": [ "regular dirichlet extension", "orthogonal complements", "natural dirichlet form", "one-dimensional brownian motion", "hilbert spaces" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }