17 citations · 57 across the 16 of their papers we have counts for
4 papers · 1 filter
Infinitesimal semi-invariant pictures and co-amalgamation
Eric J. Hanson, Kiyoshi Igusa, Moses Kim +1
The purpose of this paper is to study the local structure of the semi-invariant picture of a tame hereditary algebra near the null root. Using a construction that we call co-amalga…
Pairwise Compatibility for 2-Simple Minded Collections II: Preprojective Algebras and Semibrick Pairs of Full Rank
Emily Barnard, Eric J. Hanson
Let be a finite-dimensional associative algebra over a field. A semibrick pair is a finite set of -modules for which certain Hom- and Ext-sets vanish. A semibrick pair is co…
The Bernardi formula for non-transitive deformations of the braid arrangement
Ankit Bisain, Eric J. Hanson
Bernardi has given a general formula for the number of regions of a deformation of the braid arrangement as a signed sum over boxed trees. We prove that each set of boxed trees whi…
Decomposition of Pointwise Finite-Dimensional S^1 Persistence Modules
Eric J. Hanson, Job D. Rock
We prove that pointwise finite-dimensional S^1 persistence modules over an arbitrary field decompose uniquely, up to isomorphism, into the direct sum of a bar code and finitely-man…