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- W1999462821 abstract "The coordinate ring A of a union of planes in affine space is studied and it is asked when A is a Cohen-Macaulay or Buchsbaum ring. These properties are related to the position of the planes via the notion of seminormality. It is shown that A is Cohen-Macaulay iff A is connected in codimension 2 and seminormal in an appropriate sense. Consideration of the Cohen-Macaulification then yields a simple criterion for A to be Buchsbaum. Methods with several examples are illustrated." @default.
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- W1999462821 date "1985-02-01" @default.
- W1999462821 modified "2023-09-28" @default.
- W1999462821 title "On the Cohen-Macaulay and Buchsbaum property for unions of planes in affine space" @default.
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- W1999462821 doi "https://doi.org/10.1016/0021-8693(85)90132-2" @default.
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