3 papers
math.CO2025
On the coefficients of Coxeter polynomials of trees and bipartite quivers
Niv Harel, Sefi Ladkani
We apply spectral graph theory and a theorem of A'Campo to express the first and second coefficients of the Coxeter polynomials associated with certain bipartite quivers in terms o…
math.RT2024
Non-degenerate potentials on the quiver
Sefi Ladkani
We develop a method to compute certain mutations of quivers with potentials and use this to construct an explicit family of non-degenerate potentials on the exceptional quiver $X_7…
math.RT2024
Refined Coxeter polynomials
Sefi Ladkani
Coxeter polynomials are important homological invariants that are defined for a large class of finite-dimensional algebras. It is of particular interest to develop methods to compu…