ArticleOriginal scientific text

Title

The order of normalform hypersubstitutions of type (2)

Authors 1, 2

Affiliations

  1. University of Potsdam, Institute of Mathematics, PF 60 15 53, 14415 Potsdam, Germany
  2. State University of New York, College at Potsdam, Department of Mathematics, Potsdam, NY 13767, USA

Abstract

In [2] it was proved that all hypersubstitutions of type τ = (2) which are not idempotent and are different from the hypersubstitution whichmaps the binary operation symbol f to the binary term f(y,x) haveinfinite order. In this paper we consider the order of hypersubstitutionswithin given varieties of semigroups. For the theory of hypersubstitution see [3].

Keywords

hypersubstitutions, terms, idempotent elements, elements of infinite order

Bibliography

  1. K. Denecke, D. Lau, R. Pöschel, and D. Schweigert, Hyperidentities, hyperequational classes and clone congruences, Contributions to General Algebra 7 (1991), 97-118.
  2. K. Denecke and Sh. Wismath, The Monoid of Hypersubstitutions of Type (2), Contributions to General Algebra, Verlag Johannes Heyn, 10 (1998), 110-126.
  3. K. Denecke and Sh. Wismath, 'Hyperidentities and clones', Gordon and Breach Sci. Publ., Amsterdam-Singapore 2000.
  4. J. Płonka, Proper and inner hypersubstitutions of varieties, 'Proceedings of the International Conference: Summer school on General Algebra and Ordered sets 1994', Palacký University, Olomouc 1994, 106-115.
Pages:
183-192
Main language of publication
English
Received
1997-12-03
Accepted
1999-12-30
Published
2000
Exact and natural sciences