Direct limits of Cohen–Macaulay rings

Autor: Mehdi Dorreh, Mohsen Asgharzadeh, Massoud Tousi
Rok vydání: 2014
Předmět:
Zdroj: Journal of Pure and Applied Algebra. 218:1730-1744
ISSN: 0022-4049
DOI: 10.1016/j.jpaa.2014.01.010
Popis: Let A be a direct limit of a direct system of Cohen–Macaulay rings. In this paper, we describe the Cohen–Macaulay property of A . Our results indicate that A is not necessarily Cohen–Macaulay. We show A is Cohen–Macaulay under various assumptions. As an application, we study Cohen–Macaulayness of non-affine normal semigroup rings.
Databáze: OpenAIRE