Abstract
We give criteria for the Cohen-Macaulay and Gorenstein property of Rees algebras of height 2 non-singular equimultiple prime ideals in terms of explicite representations of the associated graded rings. As consequences, we show that in general, the Cohen-Macaulay resp. Gorenstein property of such Rees algebras does not imply the Cohen-Macaulay resp. Gorenstein property of the base ring and that these properties depend upon the characteristic.
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Dedicated to the memrory of Professor Lê Van Thiêm
Professor Lê Van Thiêm was the first directorof Hanoi Institute of Mathematics
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Trung, N.V., Viêt, D.Q. Cohen-Macaulay and Gorenstein property of Rees algebras of non-singular equimultiple prime ideals. Manuscripta Math 76, 147–167 (1992). https://doi.org/10.1007/BF02567752
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DOI: https://doi.org/10.1007/BF02567752