3 citations · 5 across the 3 of their papers we have counts for
3 papers
math.CO2024★ 2 cited
Homotopy types of Hom complexes of graph homomorphisms whose codomains are square-free
Soichiro Fujii, Kei Kimura, Yuta Nozaki
Given finite simple graphs and , the Hom complex is a polyhedral complex having the graph homomorphisms as the vertices. We determine the homoto…
math.CO2024★ 3 cited
Homotopy types of Hom complexes of graph homomorphisms whose codomains are cycles
Soichiro Fujii, Yuni Iwamasa, Kei Kimura +2
For simple graphs and , the Hom complex is a polyhedral complex whose vertices are the graph homomorphisms and whose edges connect the pairs of…
cs.DS2019
Trichotomy for the reconfiguration problem of integer linear systems
Kei Kimura, Akira Suzuki
In this paper, we consider the reconfiguration problem of integer linear systems. In this problem, we are given an integer linear system and two feasible solutions $\boldsymbol…