Keio University

Published papers

OTA Katsuhiro

41-60 items (total 98)

Book embedding of toroidal bipartite graphs

Author
Atsuhiro Nakamoto, Katsuhiro Ota and Kenta Ozeki
Publication Title
Magazine name SIAM Journal on Discrete Mathematics Volume 26(Issue 2) Start Page 661-669 (Publication Date)2012)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Hamiltonian cycles with all small even chords

Author
Guantao Chen, Katsuhiro Ota, Akira Saito and Yi Zhao
Publication Title
Magazine name Discrete Mathematics Volume 312(Issue 6) Start Page 1226-1240 (Publication Date)2012/03)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

Forbidden induced subgraphs for star-free graphs

Author
Jun Fujisawa, Katsuhiro Ota, Kenta Ozeki and Gabriel Sueiro
Publication Title
Magazine name Discrete Mathematics Volume 311(Issue 21) Start Page 2475-2484 (Publication Date)2011/11)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

Spanning trees with bounded total excess

Author
Hikoe Enomoto, Yukuchika Ohnishi and Katsuhiro Ota
Publication Title
Magazine name Ars Combinatoria Start Page 289-295 (Publication Date)2011/10)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

A note on total excess of spanning trees

Author
Yukichika Ohnishi, Katsuhiro Ota and Kenta Ozeki
Publication Title
Magazine name AKCE International Journal of Graphs and Combinatorics Volume 8(Issue 1) Start Page 97-103 (Publication Date)2011/07)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

N-flips in even triangulations on the torus and Dehn twists preserving monodromies

Author
Yusuke Higuchi, Atsuhiro Nakamoto, Katsuhiro Ota, Tadashi Sakuma
Publication Title
Magazine name Discrete Mathematics Volume 311(Issue 13) Start Page 1128-1135 (Publication Date)2011/07)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Forbidden triples for perfect matchings

Author
Katsuhiro Ota, Michael D. Plummer, Akira Saito
Publication Title
Magazine name Journal of Graph Theory Volume 67(Issue 3) Start Page 250-259 (Publication Date)2011/07)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Forbidden subgraphs and the existence of spanning k-trees

Author
Katsuhiro Ota, Takeshi Sugiyama
Publication Title
Magazine name Discrete Mathematics Volume 310(Issue 24) Start Page 3506-3511 (Publication Date)2010/12)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Forbidden subgraphs and the existence of paths and cycles passing through specified vertices

Author
Jun Fujisawa, Katsuhiro Ota, Takeshi Sugiyama, Masao Tsugaki
Publication Title
Magazine name Discrete Mathematics Volume 308(Issue 24) Start Page 6111-6114 (Publication Date)2008/12)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

The Chvatal-Erdos condition and 2-factors with a specified number of components

Author
Guantao Chen, Ronald J. Gould, Ken-ichi Kawarabayashi, Katsuhiro Ota, Akira Saito, Ingo Schiermeyer
Publication Title
Magazine name Discussiones Mathematicae Graph Theory Volume 27(Issue 3) Start Page 401-407 (Publication Date)2007)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

K_6-Minors in triangulations on the double torus

Author
Atsuhiro Nakamoto, Yoshiaki Oda, Katsuhiro Ota
Publication Title
Magazine name Congressus Numerantium Start Page 150-160 (Publication Date)2007/12)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Independence number and vertex-disjoint cycles

Author
Yoshimi Egawa, Hikoe Enomoto, Stanislav Jendrol, Katsuhiro Ota, Ingo Schiermeyer
Publication Title
Magazine name Discrete Mathematics Volume 307(Issue 11-12) Start Page 1493-1498 (Publication Date)2007/05)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

A pair of forbidden subgraphs and perfect matchings

Author
Shinya Fujita, Ken-ichi Kawarabayashi, Michael D. Plummer, Katsuhiro Ota, Akira Saito
Publication Title
Magazine name Journal of Combinatorial Theory Series B Volume 96(Issue 3) Start Page 315-324 (Publication Date)2006/05)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

The diameter of some transition graphs constructed from Hamilton cycles

Author
Mariko Hagita, Yoshiaki Oda and Katsuhiro Ota
Publication Title
Magazine name Graphs Combin. Volume 18(Issue 1) Start Page 105-117 (Publication Date)2002/02)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Choice number of some complete multi-partite graphs

Author
Hikoe Enomoto, Kyoji Ohba, Katsuhiro Ota and Junko Sakamoto
Publication Title
Magazine name Discrete Math. Volume 244(Issue 1-3) Start Page 55-66 (Publication Date)2002/02)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Vertex-disjoint stars in graphs

Author
Katsuhiro Ota
Publication Title
Magazine name Discuss. Math. Graph Theory Start Page 179-185 (Publication Date)2001)
Authorship Category
Single Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Vertex-disjoint stars in graphs

Author
Yoshimi Egawa and Katsuhiro Ota
Publication Title
Magazine name Ars Combinatoria Start Page 23-31 (Publication Date)2001/10)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Hamiltonian cycles in n-factor-critical graphs

Author
Ken-ichi Kawarabayashi, Katsuhiro Ota and Akira Saito
Publication Title
Magazine name Discrete Math. Volume 240(Issue 1-3) Start Page 71-82 (Publication Date)2001/09)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Chromatic numbers of quadrangulations on closed surfaces

Author
Dan Archdeacon, Joan Hutchinson, Atsuhiro Nakamoto, Seiya Negami and Katsuhiro Ota
Publication Title
Magazine name J. Graph Theory Volume 37(Issue 2) Start Page 100-114 (Publication Date)2001/06)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With

Algorithmic aspects of pyramidal tours with restricted jump-backs

Author
Yoshiaki Oda and Katsuhiro Ota
Publication Title
Magazine name Interdisciplinary Information Sciences Volume 7(Issue 1) Start Page 123-133 (Publication Date)2001/03)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
With