Description

• Title:
  Expanding maps and non-trivial selfcovers on infra-nilmanifolds
• Creator:
  Dekimpe, Karel;
  Deré, Jonas
• Description:
  Every expanding map on a closed manifold is topologically conjugate to an expanding map on an infra-nilmanifold, but not every infra-nilmanifold admits an expanding map. In this article we give a complete algebraic characterization of the infra-nilmanifolds admitting an expanding map. We show that, just as in the case of Anosov diffeomorphisms, the existence of an expanding map depends only on the rational holonomy representation of the infra-nilmanifold. A similar characterization is also given for the infra-nilmanifolds with a non-trivial self-cover, which corresponds to determining which almost-Bieberbach groups are co-Hopfian. These results provide many new examples of infra-nilmanifolds without non-trivial self-covers or expanding maps.
• Object availability:
  free access
• Rights:
  Prawa autorskie (c) 2016 Topological Methods in Nonlinear Analysis
• Date:
  2016.03.01
• Type:
  info:eu-repo/semantics/article;
  info:eu-repo/semantics/publishedVersion;
  Recenzowany artykuł
• Language:
  English
• Source:
  Topological Methods in Nonlinear Analysis; Vol 47, No 1 (March 2016); 347 - 368;
  1230-3429
• Publisher:
  Nicolaus Copernicus University in Toruń
• Relation: https://apcz.umk.pl/TMNA/article/view/TMNA.2016.010/7746 ;https://apcz.umk.pl/TMNA/article/view/TMNA.2016.010/7747
• Subject:
  Infra-nilmanifolds;
  expanding maps;
  nilpotent groups;
  graded Lie algebras;
  Primary;
  20F34;
  Secondary;
  22E25;
  37D20
• Identifier: https://apcz.umk.pl/TMNA/article/view/TMNA.2016.010
• Data provider:
  Akademicka Platforma Czasopism
• Can I use it?:
  seek permission
• Type:
  other