Transfer of the GPIT Property in Pullbacks

Autor: David E. Dobbs, Jay Shapiro
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: International Journal of Mathematics and Mathematical Sciences, Vol 2012 (2012)
Druh dokumentu: article
ISSN: 0161-1712
1687-0425
DOI: 10.1155/2012/743873
Popis: Let 𝑇 be a commutative ring, 𝐼 a prime ideal of 𝑇, 𝐷 a subring of 𝑇/𝐼, and 𝑅 the pullback 𝑇×𝑇/𝐼𝐷. Ascent and descent results are given for the transfer of the 𝑛-PIT and GPIT (generalized principal ideal theorem) properties between 𝑇 and 𝑅. As a consequence, it follows that if 𝐼 is a maximal ideal of both 𝑇 and 𝑅, then 𝑅 satisfies 𝑛-PIT (resp., GPIT) if and only if 𝑇 satisfies 𝑛-PIT (resp., GPIT).
Databáze: Directory of Open Access Journals