In this paper we use tight closure and Gro bner basis theory to prove that ladder determinantal rings have rational singularities. We show that the ladder determinantal rings of a certain class of ladders, which we call wide ladders, are F-rational. Though F-rationality is only defined in positive
β¦ LIBER β¦
Quasi-determinantal rational surface singularities
β Scribed by Theo de Jong
- Publisher
- Vandenhoeck & Ruprecht
- Year
- 1999
- Tongue
- German
- Weight
- 422 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0025-5858
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Ladder Determinantal Rings Have Rational
β
Aldo Conca; JΓΌrgen Herzog
π
Article
π
1997
π
Elsevier Science
π
English
β 386 KB
Cotangent cohomology of rational surface
β
Klaus Altmann; Jan Stevens
π
Article
π
1999
π
Springer-Verlag
π
English
β 129 KB
CR deformations for rational homogeneous
β
John S. Bland
π
Article
π
2005
π
SP Science China Press
π
English
β 178 KB
A new characterization of rational surfa
β
Steven Dale Cutkosky
π
Article
π
1990
π
Springer-Verlag
π
English
β 952 KB
Singularity, complexity, and quasi-integ
β
G. Falqui; C. -M. Viallet
π
Article
π
1993
π
Springer
π
English
β 770 KB
Automorphism Groups for Quasi-homogeneou
β
Frieda M Ganter
π
Article
π
1998
π
Elsevier Science
π
English
β 142 KB
Let X, 0 be a nonαlog-canonical, quasi-homogeneous surface singularity germ. Ε½ . And let G ; Aut X, 0 be the maximal reductive subgroup. In this paper we bound the order of GrC U by yP ΠΈ P, a purely topological invariant. Hurwitz's theorem comes out as a corollary. We use the standard approach of ta