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$p$-ADIC EISENSTEIN SERIES AND $L$-FUNCTIONS OF CERTAIN CUSP FORMS ON DEFINITE UNITARY GROUPS

Published online by Cambridge University Press:  21 November 2014

Ellen Eischen
Affiliation:
Department of Mathematics, The University of North Carolina at Chapel Hill, CB #3250, Chapel Hill, NC 27599-3250, USA ([email protected])
Xin Wan
Affiliation:
Department of Mathematics, Columbia University, New York, NY 10025, USA ([email protected])

Abstract

We construct $p$-adic families of Klingen–Eisenstein series and $L$-functions for cusp forms (not necessarily ordinary) unramified at an odd prime $p$ on definite unitary groups of signature $(r,0)$ (for any positive integer $r$) for a quadratic imaginary field ${\mathcal{K}}$ split at $p$. When $r=2$, we show that the constant term of the Klingen–Eisenstein family is divisible by a certain $p$-adic $L$-function.

Type
Research Article
Copyright
© Cambridge University Press 2014 

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