Explicit formulas for Hecke operators on
โ
Fukuhara, Shinji
๐
Article
๐
2007
๐
Walter de Gruyter GmbH & Co. KG
๐
English
โ 371 KB
Let S wรพ2 be the vector space of cusp forms of weight w รพ 2 on the full modular group, and let S ร wรพ2 denote its dual space. Periods of cusp forms can be regarded as elements of S ร wรพ2 . The Eichler-Shimura isomorphism theorem asserts that odd (or even) periods span S ร wรพ2 . However, periods are