Eric J. Hanson

collaborators

2 papers

math.RT2025

Bricks and $τ$ -tilting theory under base field extensions

Erlend D. Børve, Eric J. Hanson, Maximilian Kaipel

Let $K : k$ be a field extension and let $Λ$ be a finite-dimensional $k$ -algebra. We investigate the relationship between $Λ$ and $Λ_{K} = Λ \otimes_{k} K$ with particular emphasis on var…

math.CO2023

Pop-Stack Operators for Torsion Classes and Cambrian Lattices

Emily Barnard, Colin Defant, Eric J. Hanson

The pop-stack operator of a finite lattice $L$ is the map $pop_{L}^{↓} : L \to L$ that sends each element $x \in L$ to the meet of ${x} \cup cov_{L} (x)$ , whe…

Bricks and τ-tilting theory under base field extensions

Pop-Stack Operators for Torsion Classes and Cambrian Lattices

Bricks and $τ$ -tilting theory under base field extensions