{ "id": "2404.06016", "version": "v1", "published": "2024-04-09T04:51:48.000Z", "updated": "2024-04-09T04:51:48.000Z", "title": "Twisted Kronecker series and periods of modular forms on $Γ_0(N)$", "authors": [ "Clifford Blakestad", "YoungJu Choie" ], "categories": [ "math.NT" ], "abstract": "We introduce an infinite family of Kronecker series twisted by characters. As an application, we give a closed formula for the sum of all Hecke eigenforms on ${\\Gamma}_0(N) $ multiplied by their twisted period polynomials in terms of the product of those twisted Kronecker series, when N is square free. This extends an identity of Zagier among period polynomials, Hecke eigenforms and a quotient of Jacobi theta series.", "revisions": [ { "version": "v1", "updated": "2024-04-09T04:51:48.000Z" } ], "analyses": { "subjects": [ "11F12", "11F25", "11F50", "11F67" ], "keywords": [ "twisted kronecker series", "modular forms", "hecke eigenforms", "jacobi theta series", "square free" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }