Akira Hiraki

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On distance-regular graphs withki =kj, II

Hiroshi Suzuki, Akira Hiraki, Masayuki Wajima, 1995, Graphs Comb..

An Improvement of the Boshier-Nomura Bound

Akira Hiraki, 1994, J. Comb. Theory, Ser. B.

The Number of Columns (1,k−2,1) in the Intersection Array of a Distance-Regular Graph

Akira Hiraki, 2003, Graphs Comb..

A characterization of the Hamming graph by strongly closed subgraphs

Akira Hiraki, Akira Hiraki, 2008, Eur. J. Comb..

Applications of the retracing method for distance-regular graphs

Akira Hiraki, 2005, Eur. J. Comb..

Strongly Closed Subgraphs in a Distance-Regular Graph with c2 > 1

Akira Hiraki, 2008, Graphs Comb..

A characterization of some distance-regular graphs by strongly closed subgraphs

Akira Hiraki, Akira Hiraki, 2009, Eur. J. Comb..

A characterization of the Odd graphs and the doubled Odd graphs with a few of their intersection numbers

Akira Hiraki, 2007, Eur. J. Comb..

Delsarte clique graphs

Akira Hiraki, Jacobus H. Koolen, Sejeong Bang, 2007, Eur. J. Comb..

Distance-regular Graphs with b2=1 and Antipodal Covers

Makoto Araya, Akira Hiraki, Aleksandar Jurisic, 1997, Eur. J. Comb..

Strongly Closed Subgraphs in a Regular Thick Near Polygon

Akira Hiraki, Akira Hiraki, 1999, Eur. J. Comb..

A Characterization of the Hamming Graphs and the Dual Polar Graphs by Completely Regular Subgraphs

Akira Hiraki, 2012, Graphs Comb..

A generalization of an inequality of Brouwer-Wilbrink

Akira Hiraki, Jacobus H. Koolen, J. Koolen, 2005, J. Comb. Theory, Ser. A.

Distance-regular subgraphs in a distance-regular graph, II

Akira Hiraki, 1995, Eur. J. Comb..

Distance-regular Subgraphs in a Distance-regular Graph, III

Akira Hiraki, 1996, Eur. J. Comb..

Improving diameter bounds for distance-regular graphs

Akira Hiraki, Jacobus H. Koolen, Sejeong Bang, 2006, Eur. J. Comb..

Distance-regular Subgraphs in a Distance-regular Graph, IV

Akira Hiraki, 1997, Eur. J. Comb..

Distance-regular Subgraphs in a Distance-regular Graph, V

Akira Hiraki, 1998, Eur. J. Comb..

Distance-Regular Graph with c2 > 1 and a1 = 0 < a2

Akira Hiraki, 2009, Graphs Comb..

Distance-Regular Graphs with bt=1 and Antipodal Double-Covers

Makoto Araya, Akira Hiraki, Aleksandar Jurisic, 1996, J. Comb. Theory, Ser. B.

Retracing Argument for Distance-Regular Graphs

Akira Hiraki, 2000, J. Comb. Theory, Ser. B.

An Application of a Construction Theory of Strongly Closed Subgraphs in a Distance-regular Graph

Akira Hiraki, 1999, Eur. J. Comb..

Delsarte Set Graphs with Small c2

Akira Hiraki, Jacobus H. Koolen, Sejeong Bang, 2010, Graphs Comb..

A characterization of the doubled Grassmann graphs, the doubled Odd graphs, and the Odd graphs by strongly closed subgraph

Akira Hiraki, 2003, Eur. J. Comb..

A Note on Regular Near Polygons

Akira Hiraki, Jacobus H. Koolen, J. Koolen, 2004, Graphs Comb..

A Circuit Chasing Technique in a Distance-regular Graph with Triangles

Akira Hiraki, 1993, Eur. J. Comb..

Distance-regular Graphs of the Height h

Akira Hiraki, 1999, Graphs Comb..

Distance-regular subgraphs in a distance-regular graph, I

Akira Hiraki, 1995, Eur. J. Comb..

A constant bound on the number of columns (1,k − 2, 1) in the intersection array of a distance-regular graph

Akira Hiraki, 1996, Graphs Comb..

A distance-regular graph with bipartite geodetically closed subgraphs

Akira Hiraki, 2003, Eur. J. Comb..

Distance-regular Subgraphs in a Distance-regular Graph, VI

Akira Hiraki, 1998, Eur. J. Comb..

An improvement of the Ivanov bound

Akira Hiraki, Jack Koolen, 1998 .