Subschemes of some association schemes
โ Scribed by Eiichi Bannai
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 949 KB
- Volume
- 144
- Category
- Article
- ISSN
- 0021-8693
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๐ SIMILAR VOLUMES
## HAJIME TANAKA Let denote the set of two-element subsets of the projective line P G(1, q), where q = 2 e , e โฅ 1. The character table of the association scheme X(P G L(2, q), ) is calculated. Then by using this character table, we prove that the conjectured subscheme of de Caen and van Dam is in
In this short note, we compute the dimension of the open subset of the Hilbert scheme, Hilh,(,,P", parametrizing AG closed subschemes X c P" of codimension 3. @ I998 Elsevier Science B.V. All rights reserved.
We study infinite intersections of open subschemes and the corresponding infinite intersection of Hilbert schemes. If {U ฮฑ } is the collection of open subschemes of a variety X containing the fixed point P , then we show that the Hilbert functor of flat and finite families of Spec(O X,P ) = ฮฑ U ฮฑ is