William C. Newman

collaborators

4 papers

math.AG2026

On the torsion in the Chow motive of an Enriques surface

Jake Huryn, William C. Newman

The integral Chow motive of an Enriques surface $S$ is determined by a torsion summand $t (S)$ , which contributes the torsion in the cohomology of $S$ . We study isomorphi…

math.AG2026

Chow rings of moduli spaces of genus 0 curves with collisions

William C. Newman

Introduced in [BB], simplicially stable spaces are alternative compactifications of $M_{g, n}$ generalizing Hassett's moduli spaces of weighted stable curves. We give pres…

math.AG2025

Tame nodal stacky curves

Martin Bishop, William C. Newman

In this paper we analyze the properties of tame nodal stacky curves, in particular twisted curves and \textit{doubly-twisted} curves. Our main results are a complete classification…

math.AG2025

The first higher Chow groups of $M_{1, n}$ for $n \leq 4$

William C. Newman

For $n \leq 4$ , we compute the indecomposible higher Chow groups $CH (M_{1, n}, 1)$ with integer coefficients. As an application, we give new proofs…

On the torsion in the Chow motive of an Enriques surface

Chow rings of moduli spaces of genus 0 curves with collisions

Tame nodal stacky curves

The first higher Chow groups of M1,n​ for n≤4

The first higher Chow groups of $M_{1, n}$ for $n \leq 4$