Homological Transcendence Degree

Homological Transcendence Degree
复制标题

DOI:
10.1017/s0024611505015698
复制
发表时间:
2004-12
影响因子:
1.8
通讯作者:
Amnon Yekutieli;James J. Zhang
Amnon Yekutieli;James J. Zhang
中科院分区:
数学1区
文献类型:
--
作者:
Amnon Yekutieli;James J. Zhang

文献摘要

被引文献

相似文献

设D是基域k上的除代数. D的同调超越度记为Htr; D,定义为代数D的内射维数。我们证明了Htr具有经典超越度所具有的几个有用性质。推广了Resco,Rosenberg,斯科菲尔德和斯塔福德的一些结果,并计算了几类除代数的Htr.计算的主要工具是货车den Bergh的刚性对偶复形。2000年数学学科分类16 A39、16 K40、16 E10。
Let D be a division algebra over a base field k. The homological transcendence degree of D, denoted by Htr; D, is defined to be the injective dimension of the algebra D ⊗ k D°. We show that Htr has several useful properties which the classical transcendence degree has. We extend some results of Resco, Rosenberg, Schofield and Stafford, and compute Htr for several classes of division algebras. The main tool for the computation is Van den Bergh's rigid dualizing complex. 2000 Mathematics Subject Classification 16A39, 16K40, 16E10.