Jaiung Jun

collaborators

2 papers

math.CO2026

Closure operators and geometric modules of valuated matroids

Jaiung Jun, Jeffrey Tolliver

We introduce a closure operator for valuated matroids and prove that it yields a cryptomorphic definition of valuated matroids. As an application, we introduce a class of modules o…

math.CT2025

Proto-Exact Categories of Matroids over Idylls and Tropical Toric Reflexive Sheaves

Jaiung Jun, Alex Sistko, Cameron Wright

We study the category $F$ - $Mat_{∙}$ of matroids over an idyll $F$ . We show that $F$ - $Mat_{∙}$ is a proto-exact category, a non-additive generalization of…