Katsuhiro Ota

Article

2-connected 7-coverings of 3-connected graphs on surfaces

Kawarabayashi, K. I., Nakamoto, A. & Ota, K., 2003 5月, In: Journal of Graph Theory. 43, 1, p. 26-36 11 p.

研究成果: Article › 査読

6 被引用数 (Scopus)

3-trees with few vertices of degree 3 in circuit graphs

Nakamoto, A., Oda, Y. & Ota, K., 2009 3月 6, In: Discrete Mathematics. 309, 4, p. 666-672 7 p.

研究成果: Article › 査読

12 被引用数 (Scopus)

A Degree Condition for the Existence of Regular Factors in K₁, _n-Free Graphs

Ota, K. & Tokuda, T., 1996 5月, In: Journal of Graph Theory. 22, 1, p. 59-64 6 p.

研究成果: Article › 査読

17 被引用数 (Scopus)

A note on total excess of spanning trees

Ohnishi, Y. & Ota, K., 2011 6月 1, In: AKCE International Journal of Graphs and Combinatorics. 8, 1, p. 97-103 7 p.

研究成果: Article › 査読

1 被引用数 (Scopus)

A pair of forbidden subgraphs and perfect matchings

Fujita, S., Kawarabayashi, K. I., Leonardo Lucchesi, C., Ota, K., Plummer, M. D. & Saito, A., 2006 5月, In: Journal of Combinatorial Theory. Series B. 96, 3, p. 315-324 10 p.

研究成果: Article › 査読

27 被引用数 (Scopus)

A sufficient condition for a bipartite graph to have a k‐factor

Enomoto, H., Ota, K. & Kano, M., 1988, In: Journal of Graph Theory. 12, 1, p. 141-151 11 p.

研究成果: Article › 査読

5 被引用数 (Scopus)

A σ_k type condition for heavy cycles in weighted graphs

Enomoto, H., Fujisawa, J. & Ota, K., 2005 7月 1, In: Ars Combinatoria. 76, p. 225-232 8 p.

研究成果: Article › 査読

4 被引用数 (Scopus)

Book embedding of toroidal bipartite graphs

Nakamoto, A., Ota, K. & Ozeki, K., 2012, In: SIAM Journal on Discrete Mathematics. 26, 2, p. 661-669 9 p.

研究成果: Article › 査読

3 被引用数 (Scopus)

Chromatic numbers and cycle parities of quadrangulations on nonorientable closed surfaces

Nakamoto, A., Negami, S. & Ota, K., 2004 8月 6, In: Discrete Mathematics. 285, 1-3, p. 211-218 8 p.

研究成果: Article › 査読

10 被引用数 (Scopus)

Chromatic Numbers and Cycle Parities of Quadrangulations on Nonorientable Closed Surfaces

Nakamoto, A., Negami, S. & Ota, K., 2002 7月, In: Electronic Notes in Discrete Mathematics. 11, p. 509-518 10 p.

研究成果: Article › 査読

Chromatic numbers of quadrangulations on closed surfaces

Archdeacon, D., Hutchinson, J., Nakamoto, A., Negam, S. & Ota, K., 2001 6月, In: Journal of Graph Theory. 37, 2, p. 100-114 15 p.

研究成果: Article › 査読

30 被引用数 (Scopus)

Color degree sum conditions for properly colored spanning trees in edge-colored graphs

Kano, M., Maezawa, S. I., Ota, K., Tsugaki, M. & Yashima, T., 2020 11月, In: Discrete Mathematics. 343, 11, 112042.

研究成果: Article › 査読

1 被引用数 (Scopus)

Connected spanning subgraphs of 3-connected planar graphs

Enomoto, H., Iida, T. & Katsuhiro, O., 1996 11月, In: Journal of Combinatorial Theory. Series B. 68, 2, p. 314-323 10 p.

研究成果: Article › 査読

5 被引用数 (Scopus)

Connected subgraphs with small degree sums in 3-connected planar graphs

Enomoto, H. & Ota, K., 1999 3月, In: Journal of Graph Theory. 30, 3, p. 191-203 13 p.

研究成果: Article › 査読

11 被引用数 (Scopus)

Contractile triples in 3-connected graphs

McCuaig, W. & Ota, K., 1994 3月, In: Journal of Combinatorial Theory, Series B. 60, 2, p. 308-314 7 p.

研究成果: Article › 査読

19 被引用数 (Scopus)

Covers in uniform intersecting families and a counterexample to a conjecture of Lovász

Frankl, P., Ota, K. & Tokushige, N., 1996 4月, In: Journal of Combinatorial Theory. Series A. 74, 1, p. 33-42 10 p.

研究成果: Article › 査読

18 被引用数 (Scopus)

Cycles through prescribed vertices with large degree sum

Ota, K., 1995 10月 13, In: Discrete Mathematics. 145, 1-3, p. 201-210 10 p.

研究成果: Article › 査読

32 被引用数 (Scopus)

Diagonal Flips in Hamiltonian Triangulations on the Sphere

Mori, R., Nakamoto, A. & Ota, K., 2003 11月 10, In: Graphs and Combinatorics. 19, 3, p. 413-418 6 p.

研究成果: Article › 査読

24 被引用数 (Scopus)

Diagonal Transformations in Quadrangulations and Dehn Twists Preserving Cycle Parities

Nakamoto, A. & Ota, K., 1997 3月, In: Journal of Combinatorial Theory. Series B. 69, 2, p. 125-141 17 p.

研究成果: Article › 査読

11 被引用数 (Scopus)

Diagonal transformations of graphs and dehn twists of surfaces

Nakamoto, A. & Ota, K., 1997 7月, In: Journal of Combinatorial Theory. Series B. 70, 2, p. 292-300 9 p.

研究成果: Article › 査読

Open Access

13 被引用数 (Scopus)

Disjoint chorded cycles of the same length

Chen, G., Gould, R. J., Hirohata, K., Ota, K. & Shan, S., 2015, In: SIAM Journal on Discrete Mathematics. 29, 2, p. 1030-1041 12 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Edge Proximity Conditions for Extendability in Planar Triangulations

Fujisawa, J. & Ota, K., 2015 9月 1, In: Journal of Graph Theory. 80, 1, p. 1-11 11 p.

研究成果: Article › 査読

6 被引用数 (Scopus)

Every Graph Is an Integral Distance Graph in the Plane

Maehara, H., Ota, K. & Tokushige, N., 1997 11月, In: Journal of Combinatorial Theory. Series A. 80, 2, p. 290-294 5 p.

研究成果: Article › 査読

5 被引用数 (Scopus)

Exponents of uniform L-systems

Frankl, P., Ota, K. & Tokushige, N., 1996 7月, In: Journal of Combinatorial Theory. Series A. 75, 1, p. 23-43 21 p.

研究成果: Article › 査読

7 被引用数 (Scopus)

Forbidden induced subgraphs for near perfect matchings

Ota, K., Ozeki, K. & Sueiro, G., 2013, In: Discrete Mathematics. 313, 11, p. 1267-1280 14 p.

研究成果: Article › 査読

1 被引用数 (Scopus)

Forbidden Induced Subgraphs for Perfect Matchings

Ota, K. & Sueiro, G., 2013 1月 1, In: Graphs and Combinatorics. 29, 2, p. 289-299 11 p.

研究成果: Article › 査読

4 被引用数 (Scopus)

Forbidden induced subgraphs for star-free graphs

Fujisawa, J., Ota, K., Ozeki, K. & Sueiro, G., 2011 11月 6, In: Discrete Mathematics. 311, 21, p. 2475-2484 10 p.

研究成果: Article › 査読

5 被引用数 (Scopus)

Forbidden induced subgraphs for toughness

Ota, K. & Sueiro, G., 2013 6月, In: Journal of Graph Theory. 73, 2, p. 191-202 12 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

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

Fujisawa, J., Ota, K., Sugiyama, T. & Tsugaki, M., 2008 12月 28, In: Discrete Mathematics. 308, 24, p. 6111-6114 4 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Forbidden subgraphs and the existence of spanning k-trees

Ota, K. & Sugiyama, T., 2010 12月 28, In: Discrete Mathematics. 310, 24, p. 3506-3511 6 p.

研究成果: Article › 査読

1 被引用数 (Scopus)

Forbidden triples for perfect matchings

Ota, K., Plummer, M. D. & Saito, A., 2011 7月, In: Journal of Graph Theory. 67, 3, p. 250-259 10 p.

研究成果: Article › 査読

6 被引用数 (Scopus)

Fractional chromatic numbers of cones over graphs

Archdeacon, D., Hutchinson, J., Nakamoto, A., Negam, S. & Ota, K., 2001 10月, In: Journal of Graph Theory. 38, 2, p. 87-94 8 p.

研究成果: Article › 査読

30 被引用数 (Scopus)

Hadwiger's conjecture for degree sequences

Chen, G. & Ota, K., 2015 9月 1, In: Journal of Combinatorial Theory. Series B. 114, p. 247-249 3 p.

研究成果: Article › 査読

1 被引用数 (Scopus)

Hamiltonian cycles in n-factor-critical graphs

Kawarabayashi, K. I., Ota, K. & Saito, A., 2001 9月 28, In: Discrete Mathematics. 240, 1-3, p. 71-82 12 p.

研究成果: Article › 査読

4 被引用数 (Scopus)

Hamiltonian cycles with all small even chords

Chen, G., Ota, K., Saito, A. & Zhao, Y., 2012 3月 28, In: Discrete Mathematics. 312, 6, p. 1226-1240 15 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Independence number and vertex-disjoint cycles

Egawa, Y., Enomoto, H., Jendrol, S., Ota, K. & Schiermeyer, I., 2007 5月 28, In: Discrete Mathematics. 307, 11-12, p. 1493-1498 6 p.

研究成果: Article › 査読

8 被引用数 (Scopus)

K_{1, 3}-factors in graphs

Egawa, Y., Fujita, S. & Ota, K., 2008 12月 28, In: Discrete Mathematics. 308, 24, p. 5965-5973 9 p.

研究成果: Article › 査読

3 被引用数 (Scopus)

Long Cycles Passing Through a Specified Edge in a 3-Connected Graph

Enomoto, H., Hirohata, K. & Ota, K., 1997 3月, In: Journal of Graph Theory. 24, 3, p. 275-279 5 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Longest cycles in 3‐connected graphs contain three contractible edges

Dean, N., Hemminger, R. L. & Ota, K., 1989, In: Journal of Graph Theory. 13, 1, p. 17-21 5 p.

研究成果: Article › 査読

18 被引用数 (Scopus)

Lower bounds for the number of edge-crossings over the spine in a topological book embedding of a graph

Enomoto, H., Miyauchi, M. S. & Ota, K., 1999 6月, In: Discrete Applied Mathematics. 92, 2-3, p. 149-155 7 p.

研究成果: Article › 査読

Open Access

24 被引用数 (Scopus)

Maximal cycles in graphs of large girth

Fujisawa, J. & Ota, K., 2014, In: SUT Journal of Mathematics. 50, 2, p. 427-438 12 p.

研究成果: Article › 査読

Maximal K₃'s and Hamiltonicity of 4-connected claw-free graphs

Fujisawa, J. & Ota, K., 2012 5月, In: Journal of Graph Theory. 70, 1, p. 40-53 14 p.

研究成果: Article › 査読

1 被引用数 (Scopus)

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

Higuchi, Y., Nakamoto, A., Ota, K. & Sakuma, T., 2011 7月 6, In: Discrete Mathematics. 311, 13, p. 1128-1135 8 p.

研究成果: Article › 査読

7 被引用数 (Scopus)

Non-contractible edges in a 3-connected graph

Egawa, Y., Ota, K., Saito, A. & Yu, X., 1995 9月 1, In: Combinatorica. 15, 3, p. 357-364 8 p.

研究成果: Article › 査読

3 被引用数 (Scopus)

Note on irreducible triangulations of surfaces

Nakamoto, A. & Ota, K., 1995, In: Journal of Graph Theory. 20, 2, p. 227-233 7 p.

研究成果: Article › 査読

40 被引用数 (Scopus)

On 2-Factors in r-Connected (K_{1, k}, P₄)-Free Graphs

Egawa, Y., Fujisawa, J., Fujita, S. & Ota, K., 2008, In: Tokyo Journal of Mathematics. 31, 2, p. 415-420 6 p.

研究成果: Article › 査読

3 被引用数 (Scopus)

On 3-coloring of plane triangulations

Nakamoto, A., Ota, K. & Watanabe, M., 2002 7月 1, In: Electronic Notes in Discrete Mathematics. 11, p. 519-524 6 p.

研究成果: Article › 査読

On 3-coloring of plane triangulations

Nakamoto, A., Ota, K. & Watanabe, M., 2005 4月, In: Ars Combinatoria. 75, p. 157-162 6 p.

研究成果: Article › 査読

On a hamiltonian cycle in which specified vertices are not isolated

Kaneko, A., Kawarabayashi, K. I., Ota, K. & Yoshimoto, K., 2002 12月 6, In: Discrete Mathematics. 258, 1-3, p. X85-91

研究成果: Article › 査読

Open Access

1 被引用数 (Scopus)

On Minimally (n, λ)-Connected Graphs

Kaneko, A. & Ota, K., 2000 9月, In: Journal of Combinatorial Theory. Series B. 80, 1, p. 156-171 16 p.

研究成果: Article › 査読

9 被引用数 (Scopus)

太田 克弘

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太田克弘