The full Bochner theorem on real reductive groups
Abstract
The major results of Barker leading to the spherical Bochner theorem and its (spherical) extension, were made possible through the spherical transform theory of Trombi-Varadarajan and were greatly controlled by the non-availability of the full (non-spherical) Harish-Chandra Fourier transform theory on a general connected semisimple Lie group, Sequel to the recently announced results of Oyadare where the full image of the Schwartz-type algebras, under the full Fourier transform is computed to be with given as the Trombi-Varadarajan image of the present paper now gives the full Bochner theorem for by lifting the results of to full non-spherical status. An extension of the full Bochner theorem to all of is established. It is also conjectured that every positive-definite distribution on which corresponds to a Bochner measure on extends uniquely to an element of if and only if can be expressed as a finite sum of derivatives of a class of functions exclusively parameterized by members of and with for all This gives the non-spherical abstract version of the extension theorem for any positive-definite distribution on Our results confirm the one-to-one correspondence between tempered invariant positive-definite distributions and the Bochner measures of the case (as computed in Barker ) for all
Cite
@article{arxiv.1907.10819,
title = {The full Bochner theorem on real reductive groups},
author = {Olufemi O. Oyadare},
journal= {arXiv preprint arXiv:1907.10819},
year = {2019}
}
Comments
The results established here show the centrality of Trombi-Varadarajan (spherical) theory and its contribution to the Fundamental Theorem of Harmonic Analysis on Semi-simple Lie groups, recently announced by the author in arXiv. The full Bochner theorem and its abstract extension of the present paper show that classical temperedness may not be out of reach. arXiv admin note: text overlap with arXiv:1706.09047, arXiv:1706.09045, arXiv:1907.00717