Survey of generalized pregroups and a question of Reinhold Baer

• Published in: Algebra and Discrete Mathematics
• Date: 2012
• Main Authors: Gaglione, A.M., Lipschutz, S., Spellman, D.
• Format: Article
• Language: English
• Published: Інститут прикладної математики і механіки НАН України 2012
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/152208
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Survey of generalized pregroups and a question of Reinhold Baer / A.M. Gaglione, S. Lipschutz, D. Spellman // Algebra and Discrete Mathematics. — 2012. — Vol. 13, № 2. — С. 220–236. — Бібліогр.: 16 назв. — англ.

There has been recent interest in Stallings’ Pregroups. (See [2] and [12].) This paper gives a survey of generalized pregroups. We also answer a question of Reinhold Baer [1] on pregroups and answer a generalization of this question for generalized pregroups.