{ "id": "0811.4435", "version": "v1", "published": "2008-11-26T21:40:12.000Z", "updated": "2008-11-26T21:40:12.000Z", "title": "On the special values of certain Rankin-Selberg L-functions and applications to odd symmetric power L-functions of modular forms", "authors": [ "A. Raghuram" ], "comment": "30 pages", "categories": [ "math.NT", "math.RT" ], "abstract": "We prove an algebraicity result for the central critical value of certain Rankin-Selberg L-functions for GL(n) x GL(n-1). This is a generalization and refinement of some results of Harder, Kazhdan-Mazur-Schmidt, Mahnkopf, and Kasten-Schmidt. As an application of this result, we prove algebraicity results for certain critical values of the fifth and the seventh symmetric power L-functions attached to a holomorphic cusp form. Assuming Langlands functoriality one can prove similar algebraicity results for the special values of any odd symmetric power L-function. We also prove a conjecture of Blasius and Panchishkin on twisted L-values in some cases. We comment on the compatibility of our results with Deligne's conjecture on the critical values of motivic L-functions. These results, as in the above mentioned works, are, in general, based on a nonvanishing hypothesis on certain archimedean integrals.", "revisions": [ { "version": "v1", "updated": "2008-11-26T21:40:12.000Z" } ], "analyses": { "subjects": [ "11F67", "11F70", "11F75", "22E55" ], "keywords": [ "odd symmetric power l-function", "special values", "rankin-selberg l-functions", "modular forms", "symmetric power l-functions" ], "note": { "typesetting": "TeX", "pages": 30, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0811.4435R" } } }