, Volume 19, Issue 3, pp 223-237

First online:

Ohkuma Structures

  • M. GiraudetAffiliated withURA 753 Paris 7 CNRS/University of Le Mans
  • , W. C. HollandAffiliated withDepartment of Mathematics, Bowling Green State University

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The construction and characterization by T. Ohkuma of a chain whose automorphism group acts uniquely transitively is extended in this article to analogues for circularly ordered sets and betweenness chains.

Ohkuma group circularly ordered set betweenness chain