Abstract Harmonic Analysis on Spacetime
arXiv:1404.1600
Abstract
In this paper, we consider the Poincare group (space time). In mathematics, the Poincaré group of spacetime, named after Henri Poincaré, is the group of isometries of Minkowski spacetime, introduced by Hermann Minkowski. It is a non-abelian Lie group with ten generators. Spacetime, in physical science, single concept that recognizes the union of space and time, posited by Albert Einstein in the theories of relativity. One of the interesting problems for Mathematicians and Physicists is. Can we do the Fourier analysis on space time. The purpose of this paper is to define the Fourier transform the Poincaré group, and then we establish the Plancherel theorem for spacetime
Group theory, pages 20