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
โฆ LIBER โฆ
Blow-up rings and rational singularities
โ Scribed by Eero Hyry
- Publisher
- Springer
- Year
- 1999
- Tongue
- English
- Weight
- 105 KB
- Volume
- 98
- Category
- Article
- ISSN
- 0025-2611
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Ladder Determinantal Rings Have Rational
โ
Aldo Conca; Jรผrgen Herzog
๐
Article
๐
1997
๐
Elsevier Science
๐
English
โ 386 KB
On isomorphisms of blowing-ups of comple
โ
Vincent Cossart; Olivier Piltant; Ana J. Reguera-Lรณpez
๐
Article
๐
1999
๐
Springer
๐
English
โ 83 KB
Rational curves and rational singulariti
โ
Hubert Flenner; Mikhail Zaidenberg
๐
Article
๐
2003
๐
Springer-Verlag
๐
French
โ 272 KB
Blowing up power of a singular cardinalโ
โ
Moti Gitik
๐
Article
๐
2002
๐
Elsevier Science
๐
English
โ 334 KB
The paper is concerned with methods for blowing power of singular cardinals using short extenders. Thus, for example, starting with ร of coรฟnality ! with { ยก ร | o( ) ยฟ +n } coรฟnal in ร for every n ยก ! we construct a cardinal preserving extension having the same bounded subsets of ร and satisfying 2
Absolute isolatedness of rational singul
โ
G. N. Tyurina
๐
Article
๐
1969
๐
Springer US
๐
English
โ 708 KB
Rational Singularities and the Brauer Gr
โ
F. Demeyer; T. Ford; R. Miranda
๐
Article
๐
1993
๐
Elsevier Science
๐
English
โ 360 KB