3 papers
math.CO2021
Connectivity of Alternating Sign Triangle
Son Nguyen
Alternating sign triangles were introduced by Carroll and Speyer in relation to cube recurrence, by analogy to alternating sign matrices for octahedron recurrence. In this paper, w…
math.CO2021
Characterizing Alternating Sign Triangles
Son Nguyen
Alternating sign triangles were introduced by Carroll and Speyer in relation to cube recurrence, by analogy to alternating sign matrices for octahedron recurrence. Permutation tria…
math.CO2021
A proof of Lee-Lee's conjecture about geometry of rigid modules
Son Dang Nguyen
This paper proves Lee-Lee's conjecture that establishes a coincidence between the set of associated roots of non-self-intersecting curves in a -punctured disc and the set of rea…