activity
20042022
most citedFixed points of endomorphisms of graph groups

9 citations · 61 across the 34 of their papers we have counts for

collaborators

43 papers

math.GR2022

Finitely presented inverse semigroups with finitely many idempotents in each -class and non-Hausdorff universal groupoids

Pedro V. Silva, Benjamin Steinberg

The complex algebra of an inverse semigroup with finitely many idempotents in each -class is stably finite by a result of Munn. This can be proved fairly easily using $…

math.GR2022

On the rational subsets of the monogenic free inverse monoid

Pedro V. Silva

We prove that the equality problem is decidable for rational subsets of the monogenic free inverse monoid . It is also decidable whether or not a rational subset of is recog…

math.GR2021

A tribute to Mario Petrich

Pedro V. Silva, Mária B. Szendrei

This paper was written as a tribute to Mario Petrich, a major figure in the history of semigroup theory. Publication is posthumous in view of his recent death.

math.GR2020★ 2 cited

Holonomy theorem for finite semigroups

John Rhodes, Anne Schilling, Pedro V. Silva

We provide a simple proof of the Holonomy Theorem using a new Lyndon-Chiswell length function on the Karnofsky-Rhodes expansion of a semigroup. Unexpectedly, we have both a left an…

math.GR2019

Algorithmic properties of inverse monoids with hyperbolic and tree-like Schützenberger graphs

Robert D. Gray, Pedro V. Silva, Nóra Szakács

We prove that the class of finitely presented inverse monoids whose Schützenberger graphs are quasi-isometric to trees has a uniformly solvable word problem, furthermore, the langu…

math.GR2019

Eraser morphisms and membership problem in groups and monoids

Daniele D'Angeli, Emanuele Rodaro, Pedro V. Silva +1

We develop the theory of fragile words by introducing the concept of eraser morphism and extending the concept to more general contexts such as (free) inverse monoids. We character…