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An endpoint estimate
of the Kunze–Stein phenomenon on $\mathrm{SU}(n,m)$
Takeshi Kawazoe |
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Vol. 302 (2019), No. 2, 645–657
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Abstract |
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The endpoint estimates for the Kunze–Stein phenomenon associated with real rank one semisimple Lie groups and the Jacobi hypergroup were obtained by A. Ionescu and J. Liu respectively. Recently, a modified endpoint estimate was also proved for complex semisimple Lie groups by J. Liu and the author. Hence the original estimate seems not to be valid for general semisimple Lie groups with higher rank. We treat the case of and obtain a modified estimate similarly to the complex case. The process using the Abel transform makes it clear why the original endpoint estimate might not be valid for general semisimple Lie groups. |
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Keywords
Kunze-Stein phenomenon, semisimple Lie group, Abel
transform, Lorentz space, Fourier multiplier
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Mathematical Subject Classification 2010
Primary: 22E30
Secondary: 43A80, 43A90
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Milestones
Received: 27 November 2017
Revised: 3 February 2019
Accepted: 19 May 2019
Published: 27 November 2019
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Authors |
| Takeshi Kawazoe | |
| Department of Mathematics Keio University SFC Fujisawa Kanagawa Japan |
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