Erlangen Program at Large-1: Geometry of Invariants
Abstract
This paper presents geometrical foundation for a systematic treatment of three main (elliptic, parabolic and hyperbolic) types of analytic function theories based on the representation theory of SL(2,R) group. We describe here geometries of corresponding domains. The principal role is played by Clifford algebras of matching types. In this paper we also generalise the Fillmore-Springer-Cnops construction which describes cycles as points in the extended space. This allows to consider many algebraic and geometric invariants of cycles within the Erlangen program approach. For an easy-reading introduction see arXiv:math/0607387. An outline of the whole approach is given in arXiv:1006.2115.
Cite
@article{arxiv.math/0512416,
title = {Erlangen Program at Large-1: Geometry of Invariants},
author = {Vladimir V. Kisil},
journal= {arXiv preprint arXiv:math/0512416},
year = {2013}
}
Comments
AMS-LaTeX, 47 p, 80 PS graphics in 19 figures; v2: minor corrections v3: a substantial revision; v4 & v5: small improvements; v6: revised sections on lengths, infinitesimal cycles, parabolic Cayley transform; v7, v8 & v9: numerous minor improvements and updates; v10: the final version published in SIGMA; v11: the reference to Schwerdtfeger's book is added