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Branching Rules for Principal Series Representations of SL(2) over a p-adic Field
Published online by Cambridge University Press: 20 November 2018
Abstract
We explicitly describe the decomposition into irreducibles of the restriction of the principal series representations of $SL\left( 2,\,k \right)$, for $k$ a $p$-adic field, to each of its two maximal compact subgroups (up to conjugacy). We identify these irreducible subrepresentations in the Kirillov-type classification of Shalika. We go on to explicitly describe the decomposition of the reducible principal series of $SL\left( 2,\,k \right)$ in terms of the restrictions of its irreducible constituents to a maximal compact subgroup.
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- Copyright © Canadian Mathematical Society 2005
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