Revisiting Poincar\'e's Theorem on presentations of discontinuous groups via fundamental polyhedra

Autor: Eric Jespers, Á. del Río, Ann Kiefer
Přispěvatelé: Algebra
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Popis: We give a new self-contained proof of Poincar\'e's Polyhedron Theorem on presentations of discontinuous groups of isometries of a Riemann manifold of constant curvature. The proof is not based on the theory of covering spaces, but only makes use of basic geometric concepts. In a sense one hence obtains a proof that is of a more constructive nature than most known proofs.
Comment: 38 pages
Databáze: OpenAIRE