Deformation and linkage of Gorenstein algebras

Kustin, Andrew R.; Miller, Matthew

doi:10.1090/S0002-9947-1984-0743730-X

Deformation and linkage of Gorenstein algebras
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by Andrew R. Kustin and Matthew Miller PDF

Trans. Amer. Math. Soc. 284 (1984), 501-534 Request permission

Abstract:

General double linkage of Gorenstein algebras is defined. Rigidity, genericity, and regularity up to codimension six all pass across general double linkage. Rigid strongly unobstructed codimension four Gorenstein algebras which lie in different Herzog classes are produced.

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