Constant terms of Eisenstein series over a totally real field

Autor: Tomomi Ozawa
Rok vydání: 2017
Předmět:
Zdroj: International Journal of Number Theory. 13:309-324
ISSN: 1793-7310
1793-0421
DOI: 10.1142/s1793042117500208
Popis: In this paper, we compute constant terms of Eisenstein series defined over a totally real field, at various cusps. In his paper published in 2003, M. Ohta computed the constant terms of Eisenstein series of weight two over the field of rational numbers, at all equivalence classes of cusps. As for Eisenstein series defined over a totally real field, S. Dasgupta, H. Darmon and R. Pollack calculated the constant terms at particular (not all) equivalence classes of cusps in 2011. We compute constant terms of Eisenstein series defined over a general totally real field at all equivalence classes of cusps, and describe them explicitly in terms of Hecke $L$-functions. This investigation is motivated by M. Ohta's work on congruence modules related to Eisenstein series defined over the field of rational numbers.
22 pages
Databáze: OpenAIRE