2 papers
math-ph2026
Kubo Formulas and Bulk-Edge Correspondence for Curved Boundaries
Aren Martinian, Tom Stoiber
Strong topological insulators are classified by integer invariants which admit different real-space expressions. Inspired by recent work studying these invariants for spaces with c…
math.CO2022
On the critical group of hinge graphs
Aren Martinian, Andrés R. Vindas-Meléndez
Let be a finite, connected, simple graph. The critical group , also known as the sandpile group, is the torsion subgroup of the cokernel of the graph Laplacian $\operator…