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arXiv · 1210.4003

A structure theorem for unions of complete intersections

Alfio Ragusa·Giuseppe Zappala
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Abstract

Using the connections among almost complete intersection schemes, arithmetically Gorenstein schemes and schemes that are union of complete intersections we give a structure theorem for arithmetically Cohen-Macaulay union of two complete intersections of codimension $2.$ We apply the results for computing Hilbert functions and graded Betti numbers for such schemes.

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Alfio Ragusa, Giuseppe Zappala. 2012-10-15. A structure theorem for unions of complete intersections. https://arxiv.org/abs/1210.4003

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