Cohomological dimension and relative Cohen-Maculayness
classification
🧮 math.AC
keywords
relativecohomologicaldimensionnotionparameterssystema-relativecharacterize
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Let R be a commutative Noetherian (not necessarily local) ring with identity and a be a proper ideal of R. We introduce a notion of a-relative system of parameters and characterize them by using the notion of cohomological dimension. Also, we present a criterion of relative Cohen-Macaulay modules via relative system of parameters.
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