1 citations · 1 across the 7 of their papers we have counts for
22 papers
Independent set reconfiguration on directed graphs
Takehiro Ito, Yuni Iwamasa, Yasuaki Kobayashi +4
\textsc{Directed Token Sliding} asks, given a directed graph and two sets of pairwise nonadjacent vertices, whether one can reach from one set to the other by repeatedly applying a…
Finding shortest non-separating and non-disconnecting paths
Yasuaki Kobayashi, Shunsuke Nagano, Yota Otachi
For a connected graph and , a non-separating - path is a path between and such that the set of vertices of does not separate , tha…
Sorting Balls and Water: Equivalence and Computational Complexity
Takehiro Ito, Jun Kawahara, Shin-ichi Minato +7
Various forms of sorting problems have been studied over the years. Recently, two kinds of sorting puzzle apps are popularized. In these puzzles, we are given a set of bins filled…
Computational Complexity of Jumping Block Puzzles
Masaaki Kanzaki, Yota Otachi, Ryuhei Uehara
In combinatorial reconfiguration, the reconfiguration problems on a vertex subset (e.g., an independent set) are well investigated. In these problems, some tokens are placed on a s…
An Improved Deterministic Parameterized Algorithm for Cactus Vertex Deletion
Yuuki Aoike, Tatsuya Gima, Tesshu Hanaka +5
A cactus is a connected graph that does not contain as a minor. Given a graph and integer , Cactus Vertex Deletion (also known as Diamond Hitting Se…
Longest Common Subsequence in Sublinear Space
Masashi Kiyomi, Takashi Horiyama, Yota Otachi
We present the first -space polynomial-time algorithm for computing the length of a longest common subsequence. Given two strings of length , the algorithm runs i…