Hidefumi HIRAISHI

Excluded Minors for ℚ-Representability in Algebraic Extension
Hidefumi HIRAISHI Sonoko MORIYAMA 
Publication:   
Publication Date: 2019/09/01
Vol. E102-A  No. 9  pp. 1017-1021
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: Graph algorithms
Keyword: 
matroid, representable matroid, matroid minor, 
 Summary | Full Text:PDF
Revisiting the Top-Down Computation of BDD of Spanning Trees of a Graph and Its Tutte Polynomial
Farley Soares OLIVEIRA Hidefumi HIRAISHI Hiroshi IMAI 
Publication:   
Publication Date: 2019/09/01
Vol. E102-A  No. 9  pp. 1022-1027
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: Graph algorithms
Keyword: 
BDD, Tutte polynomial, graph, pathwidth, FPT algorithm, 
 Summary | Full Text:PDF
Excluded Minors of Rank 3 for Orientability and Representability
Hidefumi HIRAISHI Sonoko MORIYAMA 
Publication:   
Publication Date: 2018/09/01
Vol. E101-A  No. 9  pp. 1355-1362
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
matroid, representable matroid, matroid minor, 
 Summary | Full Text:PDF
Parameterized Algorithms to Compute Ising Partition Function
Hidefumi HIRAISHI Hiroshi IMAI Yoichi IWATA Bingkai LIN 
Publication:   
Publication Date: 2018/09/01
Vol. E101-A  No. 9  pp. 1398-1403
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
Ising model, partition function, branch decomposition, rank decomposition, fixed parameter tractability, 
 Summary | Full Text:PDF