On density theorems for rings of Krull type with zero divisors
Author(s) -
Başak Ay Saylam
Publication year - 2014
Publication title -
turkish journal of mathematics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.454
H-Index - 27
eISSN - 1303-6149
pISSN - 1300-0098
DOI - 10.3906/mat-1307-24
Subject(s) - mathematics , multiplicative function , monomorphism , invertible matrix , commutative ring , homomorphism , valuation ring , category of rings , krull dimension , noncommutative ring , combinatorics , pure mathematics , principal ideal ring , ring (chemistry) , discrete mathematics , commutative property , algebra over a field , noetherian , injective function , mathematical analysis , field (mathematics) , chemistry , organic chemistry
Let R be a commutative ring and I(R) denote the multiplicative group of all invertible fractional ideals of R, ordered by A ≥ B if and only if B ⊆ A. If R is a Marot ring of Krull type, then R(Pi), where {Pi}i∈I are a collection of prime regular ideals of R, is a valuation ring and R = ∩ R(Pi) . We denote by Gi the value group of the valuation associated with R(Pi). We prove that there is an order homomorphism from I(R) into the cardinal direct sum ∐i∈I Gi and we investigate the conditions that make this monomorphism onto for R
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