Journal of Mahani Mathematical Research

Journal of Mahani Mathematical Research

Zip and weak zip algebras in a congruence-modular variety

Document Type : Special Issue Dedicated to Prof. Esfandiar Eslami

Author
George Georgescu
Faculty of Mathematics and Computer Science, Bucharest University, Bucharest, Romania
10.22103/jmmr.2024.23258.1615
Abstract
The zip (commutative) rings, introduced by Faith and Zelmanowitz, generated a fruitful line of investigation in ring theory. Recently, Dube, Blose and Taherifar developed an abstract theory of zippedness by means of frames. Starting from some ideas contained in their papers, we define and study the zip and weak zip algebras in a semidegenerate congruence-modular variety $\mathcal{V}$. We obtain generalizations of some results existing in the literature of zip rings and zipped frames. For example, we prove that a neo-commutative algebra $A\in \mathcal{V}$ is a weak zip algebra if and only if the frame $RCon(A)$ of radical congruences of $A$ is a zipped frame (in the sense of Dube and Blose). We study the way in which the reticulation functor preserves the  zippedness property. Using the reticulation and a Hochster's theorem we prove that  a neo-commutative algebra $A\in \mathcal{V}$ is a weak zip algebra if and only if the minimal prime spectrum $Min(A)$ of $A$ is a finite space.
Keywords
semidegenerate congruence-modular variety, neo-commutative algebra
admissible morphisms
zipped frames
zip and weak zip algebras
Subjects
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Journal of Mahani Mathematical Research
Volume 13, Issue 4 - Serial Number 29
Special issue dedicated to Professor Esfandiar Eslami ( To introduce Professor Esfandiar Eslami, please visit: https://jmmrc.uk.ac.ir/p_esfandiareslami ) ( Guest Editors: Prof. R. A. Borzooei, Prof. B. Davvaz, Prof. M. Golshani, Prof. M. Moniri )
December 2024
Pages 109-130

  • Receive Date 18 April 2024
  • Revise Date 30 May 2024
  • Accept Date 04 August 2024