On Gorenstein Algebras
On Gorenstein Algebras
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DOI:
10.1007/978-3-0348-8658-1_16
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发表时间:
1991
期刊:
影响因子:
--
通讯作者:
D. Happel
中科院分区:
文献类型:
--
作者:
D. Happel
LetAbe a finite-dimensionalk-algebra (associative, with unit) over some fixed algebraically closed fieldk. Let modAbe the category of finitely generated left A-modules. WithD= Homk(—,k) we denote the standard duality with respect to the ground field. ThenAD(AA) is an injective cogenerator for modA. For an arbitraryA-moduleAXwe denote by proj.dimAX(resp. inj.dimAX) the projective dimension (resp. the injective dimension) of the moduleAX.