completions of local rings;
excellent rings;
unique factorization domains;
D O I:
10.2140/involve.2020.13.165
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
Let (T, m) be a complete local (Noetherian) domain such that depth T > 1. In addition, suppose T contains the rationals, vertical bar T vertical bar = vertical bar T /m vertical bar and the set of all principal height-1 prime ideals of T has the same cardinality as T. We construct a universally catenary local unique factorization domain A such that the completion of A is T and such that there exist uncountably many height-1 prime ideals q of A such that (T/q boolean AND A/T)(q) is a field. Furthermore, in the case where T is a normal domain, we can make A "close" to excellent in the following sense: the formal fiber at every prime ideal of A of height not equal to 1 is geometrically regular, and uncountably many height-1 prime ideals of A have geometrically regular formal fibers.
机构:
Dipartimento Matemat Tullio Levi Civita, Via Trieste 63, I-35121 Padua, ItalyDipartimento Matemat Tullio Levi Civita, Via Trieste 63, I-35121 Padua, Italy
Cossu, Laura
Zanardo, Paolo
论文数: 0引用数: 0
h-index: 0
机构:
Dipartimento Matemat Tullio Levi Civita, Via Trieste 63, I-35121 Padua, ItalyDipartimento Matemat Tullio Levi Civita, Via Trieste 63, I-35121 Padua, Italy