HNN extensions of semigroups

DOI10.1007/BF02573473zbMath0803.20039MaRDI QIDQ1328449

Deko V. Dekov

Publication date: 5 January 1995

Published in: Semigroup Forum (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/135336

zbMATH Keywords

HNN extensionunitary subsemigroupspartial groupoids

Mathematics Subject Classification ID

General structure theory for semigroups (20M10) Varieties and pseudovarieties of semigroups (20M07)

Related Items

FINITE PRESENTABILITY OF SEMIGROUP CONSTRUCTIONS ⋮ Undecidability of the word problem for Yamamura's HNN-extension under nice conditions. ⋮ The class of embeddable semigroup amalgams is not finitely axiomatizable ⋮ HNN extensions with lower bounded inverse monoids ⋮ Embedding theorems for HNN extensions of inverse semigroups. ⋮ Covers for monoids. ⋮ Deciding embeddability of partial groupoids into semigroups ⋮ HNN EXTENSIONS OF SEMILATTICES

Cites Work

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• Embedding Theorems for Groups
• Free Sums of Groups and Their Generalizations III
• The word problem