Linkage Extensions

Details Linkage Extensions Linkage Extensions

2005-01-03

arxiv.org/abs/math/0501036v1

Mathematics

Algebraic Geometry

Scientific paper

Given two equidimensional Cohen-Macaulay local rings of the same dimension,
one shows that a simultaneous extension of each of them by a dualizing module
of the other is Gorenstein. This generalizes a theorem of Fossum. The
geometrical analogue is also considered. The pairs of double lines in the
projective space which are algebraically linked are classified.

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