Essential arities of term operations in finite algebras
β Scribed by Ross Willard
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 984 KB
- Volume
- 149
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
β¦ Synopsis
Given an algebra A, p.(A) denotes the number of distinct n-ary term operations t :A" ~ A of A which depend on all n variables. We solve some problems of Berman, Gr~itzer and Kisielewicz concerning the sequence (po(A),pl(A) ..... p.(A) .... ) in case [A I is finite. Our methods yield new results about totally symmetric functions on a finite set.
π SIMILAR VOLUMES
We show that it is decidable for any given ground term rewrite systems R and S if there is a ground term rewrite system U such that If the answer is yes, then we can e ectively construct such a ground term rewrite system U . In other words, for any given ΓΏnitely generated congruences and over the t
We give a natural extension of the notion of the contragredient module for a vertex operator algebra. By using this extension we prove that for regular vertex Ε½ operator algebras, Zhu's C -finiteness condition holds, fusion rules for any three 2 . irreducible modules are finite and the vertex operat