Autor:	Phan, Christopher
Rok vydání:	2010
Předmět:	Mathematics - Rings and Algebras 16E30 (Primary) 16S36 16S37 16W50 (Secondary)
Zdroj:	Comm. Algebra 40 (2012), no. 3, 834--844
Druh dokumentu:	Working Paper
DOI:	10.1080/00927872.2010.539584
Popis:	Let A be a connected-graded algebra with trivial module k, and let B be a graded Ore extension of A. We relate the structure of the Yoneda algebra E(A) := Ext_A(k,k) to E(B). Cassidy and Shelton have shown that when A satisfies their K_2 property, B will also be K_2. We prove the converse of this result. Comment: 9 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1002.2318 Zobrazit plný text záznamu View this record from Arxiv