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math.CO2024
Codegree and regularity of stable set polytopes
Koji Matsushita, Akiyoshi Tsuchiya
The codegree of a lattice polytope is a fundamental invariant in discrete geometry. In the present paper, we investigate the codegree of th…
math.CO2024★ 1 cited
Examining Kempe equivalence via commutative algebra
Hidefumi Ohsugi, Akiyoshi Tsuchiya
Kempe equivalence is a classical and important notion on vertex coloring in graph theory. In the present paper, we introduce several ideals associated with graphs and provide a met…