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ON THE ATKIN Ut-OPERATOR FOR Γ0(t)-INVARIANT DRINFELD CUSP FORMS.

Authors :
BANDINI, ANDREA
VALENTINO, MARIA
Source :
Proceedings of the American Mathematical Society. Oct2019, Vol. 147 Issue 10, p4171-4187. 17p.
Publication Year :
2019

Abstract

We study the Atkin Ut operator for Drinfeld cusp forms. In particular, we define newforms and oldforms of level Γ0(t) and we study basic properties of their slopes. Moreover, we find an explicit formula for the matrix associated to the action of Ut on Γ1(t)-invariant cusp forms using Teitelbaum's interpretation as harmonic cocycles. [ABSTRACT FROM AUTHOR]

Subjects

Subjects :
*COCYCLES
*MATRICES (Mathematics)

Details

Language :
English
ISSN :
00029939
Volume :
147
Issue :
10
Database :
Academic Search Index
Journal :
Proceedings of the American Mathematical Society
Publication Type :
Academic Journal
Accession number :
138640673
Full Text :
https://doi.org/10.1090/proc/14491