Indecomposable pure-injective objects in stable categories of Gorenstein-projective modules over Gorenstein orders
Indecomposable pure-injective objects in stable categories of Gorenstein-projective modules over Gorenstein orders
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发表时间:
2022-09
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通讯作者:
Tsutomu Nakamura
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作者:
Tsutomu Nakamura
. We give a result of Auslander–Ringel–Tachikawa type for Gorenstein-projective modules over a complete Gorenstein order. In particular, we prove that a complete Gorenstein order is of finite Cohen–Macaulay representation type if and only if every indecomposable pure-injective object in the stable category of Gorenstein-projective modules is compact.