Skip to content

The ring of arithmetical functions with unitary convolution: General Truncations

Jan Snellman

math.ACarXiv:math/0205242

Abstract

Let A denote the ring of arithmetical functions with unitary convolution, and let V be a finite subset of the positive integers having the property that for every v in V, all unitary divisors of v lie in V. We study the truncation AV, an artinian monomial quotient of a polynomial ring in finitely many indeterminates, isomorphic to the ``Artinified'' Stanley-Reisner ring C[Δ(V)] of a certain simplicial complex Δ(V).

Create a lesson