{ "id": "2212.06208", "version": "v1", "published": "2022-12-12T19:29:23.000Z", "updated": "2022-12-12T19:29:23.000Z", "title": "Hecke operators on topological modular forms", "authors": [ "Jack Morgan Davies" ], "comment": "53 pages, comments welcome", "categories": [ "math.AT", "math.AG", "math.NT" ], "abstract": "The cohomology theory TMF of topological modular forms is a derived algebro-geometric interpretation of the classical ring of complex modular forms from number theory. In this article, we refine the classical Adams operations, Hecke operators, and Atkin--Lehner involutions from endomorphisms of classical modular forms to stable operators on TMF. Our algebro-geometric formulation of these operators leads to simple proofs of their many remarkable properties and computations. From these properties, we use techniques from homotopy theory to make simple number-theoretic deductions, including a rederivation of some classical congruences of Ramanujan and providing new infinite families of classical Hecke operators which satisfy Maeda's conjecture.", "revisions": [ { "version": "v1", "updated": "2022-12-12T19:29:23.000Z" } ], "analyses": { "subjects": [ "11F23", "11F25", "14D23", "55N34", "55N22", "55P43", "55S25" ], "keywords": [ "topological modular forms", "hecke operators", "complex modular forms", "satisfy maedas conjecture", "simple number-theoretic deductions" ], "note": { "typesetting": "TeX", "pages": 53, "language": "en", "license": "arXiv", "status": "editable" } } }