Katsuhiro Ota

Weighted Ramsey problem

Fujisawa, J. & Ota, K., 2006 12月 1, In: Australasian Journal of Combinatorics. 34, p. 331-342 12 p.

研究成果: Article › 査読

1 被引用数 (Scopus)

Vertex-Disjoint Paths in Graphs

Egawa, Y. & Ota, K., 2001 12月 1, In: Ars Combinatoria. 61, p. 23-31 9 p.

研究成果: Article › 査読

3 被引用数 (Scopus)

Vertex-disjoint cycles containing specified vertices in a bipartite graph

Chen, G., Enomoto, H., Kawarabayashi, K. I., Ota, K., Lou, D. & Saito, A., 2004 7月, In: Journal of Graph Theory. 46, 3, p. 145-166 22 p.

研究成果: Article › 査読

4 被引用数 (Scopus)

Vertex-disjoint cycles containing specified edges in a bipartite graph

Chen, G., Enomoto, H., Kawarabayashi, K. I., Ota, K., Lou, D. & Saito, A., 2001 12月 1, In: Australasian Journal of Combinatorics. 23, p. 37-48 12 p.

研究成果: Article › 査読

5 被引用数 (Scopus)

Vertex-disjoint claws in graphs

Egawa, Y. & Ota, K., 1999 2月 28, In: Discrete Mathematics. 197-198, p. 225-246 22 p.

研究成果: Article › 査読

Open Access

7 被引用数 (Scopus)

Uniform Intersecting Families with Covering Number Restrictions

Frankl, P., Ota, K. & Tokushige, N., 1998, In: Combinatorics Probability and Computing. 7, 1, p. 47-56 10 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Uniform intersecting families with covering number four

Frankl, P., Ota, K. & Tokushige, N., 1995 7月, In: Journal of Combinatorial Theory, Series A. 71, 1, p. 127-145 19 p.

研究成果: Article › 査読

8 被引用数 (Scopus)

Toughness of K_a,t-minor-free graphs

Chen, G., Egawa, Y., Kawarabayashi, K. I., Mohar, B. & Ota, K., 2011, In: Electronic Journal of Combinatorics. 18, 1

研究成果: Article › 査読

Open Access

4 被引用数 (Scopus)

The number of contractible edges in 3-connected graphs

Ota, K., 1988 12月 1, In: Graphs and Combinatorics. 4, 1, p. 333-354 22 p.

研究成果: Article › 査読

10 被引用数 (Scopus)

The existence of a 2-factor in K_{1, n}-free graphs with large connectivity and large edge-connectivity

Aldred, R. E. L., Egawa, Y., Fujisawa, J., Ota, K. & Saito, A., 2011 9月, In: Journal of Graph Theory. 68, 1, p. 77-89 13 p.

研究成果: Article › 査読

10 被引用数 (Scopus)

The diameters of some transition graphs constructed from Hamilton cycles

Hagita, M., Oda, Y. & Ota, K., 2002, In: Graphs and Combinatorics. 18, 1, p. 105-117 13 p.

研究成果: Article › 査読

1 被引用数 (Scopus)

The 3‐connected graphs having a longest cycle containing only three contractible edges

Aldred, R. E. L., Hemminger, R. L. & Ota, K., 1993, In: Journal of Graph Theory. 17, 3, p. 361-371 11 p.

研究成果: Article › 査読

12 被引用数 (Scopus)

Subgraphs of graphs on surfaces with high representativity

Kawarabayashi, K. I., Nakamoto, A. & Ota, K., 2003 11月, In: Journal of Combinatorial Theory. Series B. 89, 2, p. 207-229 23 p.

研究成果: Article › 査読

15 被引用数 (Scopus)

Spanning trees with bounded total excess

Enomoto, H., Ohnishi, Y. & Ota, K., 2011 10月 1, In: Ars Combinatoria. 102, p. 289-295 7 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Spanning trees in 3-connected K _3,t-minor-free graphs

Ota, K. & Ozeki, K., 2012 9月, In: Journal of Combinatorial Theory. Series B. 102, 5, p. 1179-1188 10 p.

研究成果: Article › 査読

5 被引用数 (Scopus)

Spanning trees in 3-connected K_3,t-minor-free graphs

Ota, K. & Ozeki, K., 2009 8月 1, In: Electronic Notes in Discrete Mathematics. 34, p. 145-149 5 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Regular factors in K_1,n free graphs

Egawa, Y. & Ota, K., 1991, In: Journal of Graph Theory. 15, 3, p. 337-344 8 p.

研究成果: Article › 査読

32 被引用数 (Scopus)

Pyramidal tours with step-backs and the asymmetric traveling salesman problem

Enomoto, H., Oda, Y. & Ota, K., 1998 10月 5, In: Discrete Applied Mathematics. 87, 1-3, p. 57-65 9 p.

研究成果: Article › 査読

Open Access

10 被引用数 (Scopus)

Polynomial invariants of graphs II

Negami, S. & Ota, K., 1996 1月 1, In: Graphs and Combinatorics. 12, 2, p. 189-198 10 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Planar triangulations which quadrangulate other surfaces

Nakamoto, A., Negami, S., Ota, K. & Širáň, J., 2004 8月, In: European Journal of Combinatorics. 25, 6, p. 817-833 17 p.

研究成果: Article › 査読

6 被引用数 (Scopus)

Partitions of a graph into paths with prescribed endvertices and lengths

Enomoto, H. & Ota, K., 2000 6月, In: Journal of Graph Theory. 34, 2, p. 163-169 7 p.

研究成果: Article › 査読

10 被引用数 (Scopus)

Ore-type degree condition for heavy paths in weighted graphs

Enomoto, H., Fujisawa, J. & Ota, K., 2005 9月 6, In: Discrete Mathematics. 300, 1-3, p. 100-109 10 p.

研究成果: Article › 査読

1 被引用数 (Scopus)

On the pagenumber of complete bipartite graphs

Enomoto, H., Nakamigawa, T. & Ota, K., 1997 9月, In: Journal of Combinatorial Theory. Series B. 71, 1, p. 111-120 10 p.

研究成果: Article › 査読

35 被引用数 (Scopus)

On separable self-complementary graphs

Kawarabayashi, K. I., Nakamoto, A., Oda, Y., Ota, K., Tazawa, S. & Watanabe, M., 2002 11月 6, In: Discrete Mathematics. 257, 1, p. 165-168 4 p.

研究成果: Article › 査読

Open Access

1 被引用数 (Scopus)

On minimally 3-connected graphs on a surface

Ota, K., 2002 7月, In: Electronic Notes in Discrete Mathematics. 11, p. 760 1 p.

研究成果: Article › 査読

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)

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 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 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)

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)

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)

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)

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)

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

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

25 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)

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)

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)

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)

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)

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)

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)

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

32 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)

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 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 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 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 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)

太田 克弘

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太田克弘