RUS  ENG
Full version
JOURNALS // Symmetry, Integrability and Geometry: Methods and Applications // Archive

SIGMA, 2020 Volume 16, 024, 10 pp. (Mi sigma1561)

Horospherical Cauchy Transform on Some Pseudo-Hyperbolic Spaces

Simon Gindikin

Department of Mathematics, Hill Center, Rutgers University, 110 Frelinghysen Road, Piscataway, NJ 08854, USA

Abstract: We consider the horospherical transform and its inversion in 3 examples of hyperboloids. We want to illustrate via these examples the fact that the horospherical inversion formulas can be directly extracted from the classical Radon inversion formula. In a more broad context, this possibility reflects the fact that the harmonic analysis on symmetric spaces (Riemannian as well as pseudo-Riemannian ones) is equivalent (homologous), up to the Abelian Fourier transform, to the similar problem in the flat model. On the technical level it is important that we work not with the usual horospherical transform, but with its Cauchy modification.

Keywords: pseudo-hyperbolic spaces, hyperboloids, horospheres, horospherical transform, horospherical Cauchy transform.

MSC: 32A45, 33C55, 43A75, 44A12

Received: October 28, 2019; in final form March 29, 2020; Published online April 7, 2020

Language: English

DOI: 10.3842/SIGMA.2020.024



Bibliographic databases:
ArXiv: 1910.12864


© Steklov Math. Inst. of RAS, 2025