Coxeter system of lines are sets of injectivity for the twisted spherical means on
arXiv:1103.4571
Abstract
It is well known that a line in is not a set of injectivity for the spherical means for odd functions about that line. We prove that any line passing through the origin is a set of injectivity for the twisted spherical means (TSM) for functions whose each of spectral projection is a polynomial. Then, we prove that any Coxeter system of even number of lines is a set of injectivity for the TSM for
This article is accepted in J. Funct. Anal. jointly with arXiv:1204.2773