K-invariant cusp forms for reductive symmetric spaces of split rank one
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K-invariant cusp forms for reductive symmetric spaces of split rank one. / Ban van den, Erik; Kuit, Job Jacob; Schlichtkrull, Henrik.
I: Forum Mathematicum, Bind 31, Nr. 2, 2019, s. 341-349.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - K-invariant cusp forms for reductive symmetric spaces of split rank one
AU - Ban van den, Erik
AU - Kuit, Job Jacob
AU - Schlichtkrull, Henrik
PY - 2019
Y1 - 2019
N2 - Let G/H be a reductive symmetric space of split rank one and let K be a maximal compact subgroup of G. In a previous article the first two authors introduced a notion of cusp forms for G/H. We show that the space of cusp forms coincides with the closure of the space of K-finite generalized matrix coefficients of discrete series representations if and only if there exist no K-spherical discrete series representations. Moreover, we prove that every K-spherical discrete series representation occurs with multiplicity one in the Plancherel decomposition of G/H.
AB - Let G/H be a reductive symmetric space of split rank one and let K be a maximal compact subgroup of G. In a previous article the first two authors introduced a notion of cusp forms for G/H. We show that the space of cusp forms coincides with the closure of the space of K-finite generalized matrix coefficients of discrete series representations if and only if there exist no K-spherical discrete series representations. Moreover, we prove that every K-spherical discrete series representation occurs with multiplicity one in the Plancherel decomposition of G/H.
U2 - 10.1515/forum-2018-0150
DO - 10.1515/forum-2018-0150
M3 - Journal article
VL - 31
SP - 341
EP - 349
JO - Forum Mathematicum
JF - Forum Mathematicum
SN - 0933-7741
IS - 2
ER -
ID: 215037284