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Orthogonal Root Numbers of Tempered Parameters by Schwein, David is a scholarly article available to read on EtoBox.

What is Orthogonal Root Numbers of Tempered Parameters about?

We show that an orthogonal root number of a tempered L-parameter decomposes as the product of two other numbers: the orthogonal root number of the principal parameter and the value on a certain involution of Langlands's central character for the parameter. The formula resolves a conjecture of Gross and Reeder and computes root numbers of Weil-Deligne representations arising in the work of Hiraga, Ichino, and Ikeda on the Plancherel measure.

Author

Schwein, David

Published

2021

Language

EN