activity
19982021
most citedBraids, posets and orthoschemes

49 citations · 164 across the 34 of their papers we have counts for

collaborators

37 papers

math.GT2021

Geometric Combinatorics of Polynomials I: The Case of a Single Polynomial

Michael Dougherty, Jon McCammond

There are many different algebraic, geometric and combinatorial objects that one can attach to a complex polynomial with distinct roots. In this article we introduce a new object t…

math.GR2021

Factoring isometries of quadratic spaces into reflections

Jon McCammond, Giovanni Paolini

Let be a vector space endowed with a non-degenerate quadratic form . If the base field is different from , it is known that every isometry can be…

math.CV2019

Critical Points, Critical Values, and a Determinant Identity for Complex Polynomials

Michael Dougherty, Jon McCammond

Given any n-tuple of complex numbers, one can canonically define a polynomial of degree n+1 that has the entries of this n-tuple as its critical points. In 2002, Beardon, Carne, an…

math.AT2019

Connectivity at Infinity for the Braid Group of a Complete Bipartite Graph

Kristen Mazur, Jon McCammond, John Meier +1

The graph braid group of a complete bipartite graph is the fundamental group of a configuration space of points on the graph, which is a CAT(0) cube complex. We combine an analysis…

math.CO2019

Fixed Points of Parking Functions

Jon McCammond, Hugh Thomas, Nathan Williams

We define an action of words in on to give a new characterization of rational parking functions -- they are exactly those words whose action has a fixed poin…

math.GR2018★ 3 cited

Boundary Braids

Michael Dougherty, Jon McCammond, Stefan Witzel

The n-strand braid group can be defined as the fundamental group of the configuration space of n unlabeled points in a closed disk based at a configuration where all n points lie i…