词条 | Minimal algebra |
释义 |
Minimal algebra is an important concept in tame congruence theory, a theory that has been developed by Ralph McKenzie and David Hobby [1]. DefinitionA minimal algebra is a finite algebra with more than one element, in which every non-constant unary polynomial is a permutation on its domain. ClassificationA polynomial of an algebra is a composition of its basic operations, -ary operations and the projections. Two algebras are called polynomially equivalent if they have the same universe and precisely the same polynomial operations. A minimal algebra falls into one of the following types (P. P. Pálfy) [1] [2]
References1. ^1 {{cite book |last1=Hobby |first1=David |last2=McKenzie |first2=Ralph |title=The structure of finite algebras |date=1988 |publisher=American Mathematical Society |location=Providence, RI |isbn=0-8218-5073-3 |page=xii+203 pp}} 2. ^{{cite journal |last1=Pálfy |first1=P. P. |title=Unary polynomials in algebras. I |journal=Algebra Universalis |date=1984 |volume=18 |issue=3 |pages=262-273}} 1 : Algebra |
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