arXiv Open Access 2002

Canonical Big Cohen-Macaulay algebras and rational singularities

Hans Schoutens

Lihat Sumber

Abstrak

We give a canonical construction of a balanced big Cohen-Macaulay algebra for a domain of finite type over $\mathbb C$ by taking ultraproducts of absolute integral closures in positive characteristic. This yields a new tight closure characterization of rational singularities in characteristic zero.

Topik & Kata Kunci

math.AC math.AG

Penulis (1)

Hans Schoutens

Format Sitasi

APA MLA BibTeX

Schoutens, H. (2002). Canonical Big Cohen-Macaulay algebras and rational singularities. https://arxiv.org/abs/math/0206250

Akses Cepat

Lihat di Sumber

Informasi Jurnal

Tahun Terbit: 2002
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓