On the Set of Molecules of Numerical and Puiseux Monoids

Gotti, Marly; Tirador, Marcos M.

doi:10.1007/978-981-16-8422-7_5

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2021

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“…A Puiseux monoid is an additive submonoid of the real line consisting of nonnegative rationals. Although Puiseux monoids have appeared in the literature only sporadically since the 1970s, the first systematic study of their atomicity started in [22] and have continued with a series of papers by several authors, including S. T. Chapman, F. Gotti, H. Polo, and the second author (see the recent papers [10,25,28] and references therein). Although Puiseux monoids are concrete algebraic objects that are easy to define, their atomic structure is rather complex.…”

Section: Introductionmentioning

confidence: 99%

Factorizations in reciprocal Puiseux monoids

Aguilera¹,

Gotti²,

Hamelberg³

2021

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A Puiseux monoid is an additive submonoid of the real line consisting of rationals. We say that a Puiseux monoid is reciprocal if it can be generated by the reciprocals of the terms of a strictly increasing sequence of pairwise relatively primes positive integers. We say that a commutative and cancellative (additive) monoid is atomic if every non-invertible element x can be written as a sum of irreducibles. The number of irreducibles in this sum is called a length of x. In this paper, we identify and investigate generalized classes of reciprocal Puiseux monoids that are atomic. Moreover, for the atomic monoids in the identified classes, we study the ascending chain condition on principal ideals and also the sets of lengths of their elements.

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