{ "id": "1211.4715", "version": "v2", "published": "2012-11-20T11:27:40.000Z", "updated": "2013-03-22T14:07:16.000Z", "title": "Petersson inner products of weight one modular forms", "authors": [ "Maryna Viazovska" ], "comment": "36 pages", "categories": [ "math.NT" ], "abstract": "In this paper we study regularized Petersson products between a holomorphic theta series associated to a positive definite binary quadratic form and a weakly holomorphic weight 1 modular form with integral Fourier coefficients. In our recent work \\cite{Via CM Green} motivated by the conjecture of B. Gross and D. Zagier on the CM values of higher Green's functions we have discovered that such a Petersson product is equal to the logarithm of a certain algebraic number lying in a ring class field associated to the binary quadratic form. The main result of the present paper is the explicit factorization formula for the obtained algebraic number.", "revisions": [ { "version": "v2", "updated": "2013-03-22T14:07:16.000Z" } ], "analyses": { "keywords": [ "petersson inner products", "modular form", "algebraic number", "positive definite binary quadratic form", "explicit factorization formula" ], "note": { "typesetting": "TeX", "pages": 36, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1211.4715V" } } }