Accepted Elasticity in Local Arithmetic Congruence Monoids

被引:2
|
作者
Crawford, Lorin [1 ]
Ponomarenko, Vadim [2 ]
Steinberg, Jason [3 ]
Williams, Marla [4 ]
机构
[1] Clark Atlanta Univ, Atlanta, GA 30314 USA
[2] San Diego State Univ, San Diego, CA 92182 USA
[3] Princeton Univ, Princeton, NJ 08544 USA
[4] Willamette Univ, Salem, OR 97301 USA
基金
美国国家科学基金会;
关键词
Non-unique factorization; arithmetical congruence monoid; accepted elasticity; elasticity of factorization; KRULL DOMAINS; FACTORIZATIONS;
D O I
10.1007/s00025-014-0374-6
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
For certain , an Arithmetic Congruence Monoid M(a, b) is a multiplicatively closed subset of given by . An irreducible in this monoid is any element that cannot be factored into two elements, each greater than 1. Each monoid element (apart from 1) may be factored into irreducibles in at least one way. The elasticity of a monoid element (apart from 1) is the longest length of a factorization into irreducibles, divided by the shortest length of a factorization into irreducibles. The elasticity of the monoid is the supremum of the elasticities of the monoid elements. A monoid has accepted elasticity if there is some monoid element that has the same elasticity as the monoid. An Arithmetic Congruence Monoid is local if gcd(a, b) is a prime power (apart from 1). It has already been determined whether Arithmetic Congruence Monoids have accepted elasticity in the non-local case; we make make significant progress in the local case, i.e. for many values of a, b.
引用
收藏
页码:227 / 245
页数:19
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