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Cofiniteness and finiteness of local cohomology modules over regular local rings

Jafar A'zamiNaser Pourreza — 2017

Czechoslovak Mathematical Journal

Let ( R , 𝔪 ) be a commutative Noetherian regular local ring of dimension d and I be a proper ideal of R such that mAss R ( R / I ) = Assh R ( I ) . It is shown that the R -module H I ht ( I ) ( R ) is I -cofinite if and only if cd ( I , R ) = ht ( I ) . Also we present a sufficient condition under which this condition the R -module H I i ( R ) is finitely generated if and only if it vanishes.

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