- Tytuł:
- On the characterisation of Maltsev and Jónsson-Tarski algebras
- Autorzy:
- Smith, Jonathan
- Powiązania:
- https://bibliotekanauki.pl/articles/728924.pdf
- Data publikacji:
- 2003
- Wydawca:
- Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
- Tematy:
-
Mal'tsev variety
Mal'tsev algebra
Jónsson-Tarski variety
Jónsson-Tarski algebra
Goldie variety
Goldie algebra
congruence permutability
simplicial object - Opis:
- There are very strong parallels between the properties of Mal'tsev and Jónsson-Tarski algebras, for example in the good behaviour of centrality and in the factorization of direct products. Moreover, the two classes between them include the majority of algebras that actually arise 'in nature'. As a contribution to the research programme building a unified theory capable of covering the two classes, along with other instances of good centrality and factorization, the paper presents a common framework for the characterisation of Mal'tsev and Jónsson-Tarski algebras. Mal'tsev algebras are characterized by simplicial identities in the product complex of an algebra. In the dual of a pointed variety, a simplicial object known as the pointed complex is then constructed. The basic simplicial Mal'tsev identity in the pointed complex characterises Jónsson-Tarski algebras. Higher-dimensional simplicial Mal'tsev identities in the pointed complex are characteristic of a class of algebras lying properly between Goldie and Jónsson-Tarski algebras.
- Źródło:
-
Discussiones Mathematicae - General Algebra and Applications; 2003, 23, 2; 149-161
1509-9415 - Pojawia się w:
- Discussiones Mathematicae - General Algebra and Applications
- Dostawca treści:
- Biblioteka Nauki
Artykuł