PAPER / ARXIV:2609.13119

Jacquet--Rallis transfer for GL(2)

Andreas Mihatsch , Siddarth Sankaran , Tonghai Yang

Teoria dos números Teoria de representações · cruzada

RESUMO

We study archimedean smooth transfer for the Jacquet--Rallis relative trace formula comparison, in particular, identities between orbital integrals on GL(n) and its unitary forms. We work with Lie algebras and a (g,K)-module setting. Our main result states that for n=2, meaning GL(2) acting on gl(3), every polynomial type Schwartz function has a transfer to the unitary side and vice versa. Our proof relies on the Weil representation and the study of invariant differential operators. It also suggests certain structural properties of the (g,K)-modules in question which we formulate as conjectures.

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