activity
20132026
most citedClean Single-Valued Polylogarithms

6 citations · 25 across the 19 of their papers we have counts for

collaborators

21 papers

math.NT2026

A Positive Proportion of the Reduced D'Arcais Polynomials is not Hurwitz

Steven Charlton, Bernhard Heim, Markus Neuhauser +2

Heretofore, the second and third author conjectured that the D'Arcais polynomials, related to the coefficients of the powers of the Dedekind -function, are Hurwitz polynomials e…

math.NT2026

On the Smallest Counterexample to the Log-Concavity of the D'Arcais Polynomials

Steven Charlton, Bernhard Heim, Johann Stumpenhusen

Recently, Starr used asymptotic methods to disprove a conjecture by Heim--Neuhauser and Abdesselam about the log-concavity of the D'Arcais polynomials, without giving an explicit c…

math.NT2026

Multiple zeta values ending with a fixed string

Steven Charlton

We give a generating series expression for the sum of all multiple zeta values of a fixed weight, depth, and height, which end with a given string $\vec{\ell} = (\ell_1,\ldots,\ell…

math.NT2025

Multiple polylogarithms and the Steinberg module

Steven Charlton, Danylo Radchenko, Daniil Rudenko

We establish a connection between multiple polylogarithms on a torus and the Steinberg module of , and show that multiple polylogarithms of depth and weight can…

math.NT2024

The Hopf algebra of formal multiple polylogarithms

Steven Charlton, Andrei Matveiakin, Danylo Radchenko +1

We define a Hopf algebra of polylogarithms of an arbitrary field, which is a candidate for a conjectural Hopf algebra of framed mixed Tate motives. Our definition is elementary and…

math.NT2024

Symmetries of weight 6 multiple polylogarithms and Goncharov's Depth Conjecture

Steven Charlton

We prove that the weight 6, depth 3, multiple polylogarithm , or rather its more natural `divergent' incarnation $ \mathrm{Li}_{3;1,1,1}(x,…

math.NT2022

On the Goncharov Depth Conjecture and polylogarithms of depth two

Steven Charlton, Herbert Gangl, Danylo Radchenko +1

We prove the surjectivity part of Goncharov's depth conjecture. We also show that the depth conjecture implies that multiple polylogarithms of depth and weight can be expre…

math.NT2022★ 5 cited

On two conjectures of Sun concerning Apéry-like series

Steven Charlton, Herbert Gangl, Li Lai +2

In this paper, we shall prove two conjectures of Z.-W. Sun concerning Apéry-like series. One of the series is alternating whereas the other one is not. Our main strategy is to conv…

math.NT2022

Evaluation of the multiple zeta values and period polynomial relations

Steven Charlton, Adam Keilthy

In studying the depth filtration on multiple zeta values, difficulties quickly arise due to a disparity between it and the coradical filtration. In particular, there are additional…

math.NT2022★ 2 cited

Symmetry results for multiple -values

Steven Charlton, Michael E. Hoffman

For a composition whose first part exceeds 1, we can define the multiple -value as the sum of all the terms in the series for the multiple zeta value whose den…

math.NT2021

On the evaluation of the alternating multiple value

Steven Charlton

We prove an evaluation for the stuffle-regularised multiple value in terms of , and . This…

math.NT2021★ 3 cited

On motivic multiple values, Saha's basis conjecture, and generators of alternating MZV's

Steven Charlton

We give an evaluation for the stuffle-regularised as a polynomial in single-zeta values, and . We then apply this to establish some lin…

math.NT2021★ 6 cited

Clean Single-Valued Polylogarithms

Steven Charlton, Claude Duhr, Herbert Gangl

We define a variant of real-analytic polylogarithms that are single-valued and that satisfy ''clean'' functional relations that do not involve any products of lower weight function…

math.NT2020

Functional equations of polygonal type for multiple polylogarithms in weights 5, 6 and 7

Steven Charlton, Herbert Gangl, Danylo Radchenko

We present new functional equations in weights 5, 6 and 7 and use them for explicit depth reduction of multiple polylogarithms. These identities generalize the crucial identity $\m…

math.NT2019★ 2 cited

Explicit formulas for Grassmannian polylogarithms

Steven Charlton, Herbert Gangl, Danylo Radchenko

We give new explicit formulas for Grassmannian and Aomoto polylogarithms in terms of iterated integrals, for arbitrary weight. We also explicitly reduce the Grassmannian polylogari…

math.NT2019

Generalized Jacobi-Trudi determinants and evaluations of Schur multiple zeta values

Henrik Bachmann, Steven Charlton

We present new determinant expressions for regularized Schur multiple zeta values. These generalize the known Jacobi-Trudi formulae and can be used to quickly evaluate certain type…

math.NT2019

On functional equations for Nielsen polylogarithms

Steven Charlton, Herbert Gangl, Danylo Radchenko

We derive new functional equations for Nielsen polylogarithms. We show that, when viewed modulo and products of lower weight functions, the weight Nielsen polyl…

math.NT2018

Analogues of cyclic insertion type identities for multiple zeta star values

Steven Charlton

We prove an identity for multiple zeta star values, which generalises some identities due to Imatomi, Tanaka, Tasaka and Wakabayashi. This identity gives an analogue of cyclic inse…

math.NT2017

The alternating block decomposition of iterated integrals, and cyclic insertion on multiple zeta values

Steven Charlton

The cyclic insertion conjecture of Borwein, Bradley, Broadhurst and Lisoněk states that by inserting all cyclic permutations of some initial blocks of 2's into the multiple zeta va…

math.NT2017★ 2 cited

A review of Dan's reduction method for multiple polylogarithms

Steven Charlton

In this paper we will give an account of Dan's reduction method for reducing the weight multiple logarithm to an explicit sum of l…

math.NT2013★ 5 cited

ζ({{2}^m, 1, {2}^m, 3}^n, {2}^m) / π^{4n + 2m(2n+1)} is rational

Steven Charlton

The cyclic insertion conjecture of Borwein, Bradley, Broadhurst and Lisoněk states that inserting all cyclic shifts of some fixed blocks of 2's into the multiple zeta value ζ(1,3,.…