Title of article
Central groupoids, central digraphs, and zero-one matrices A satisfying A2=J
Author/Authors
Curtis، نويسنده , , Frank and Drew، نويسنده , , John J.Z. Li، نويسنده , , Chi-Kwong and Pragel، نويسنده , , Daniel، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
16
From page
35
To page
50
Abstract
We study central groupoids, central digraphs, and zero-one matrices A satisfying A2=J. A survey of known results is given, including short proofs for some of them; new results and techniques are developed, and conjectures are settled. Open questions and new conjectures are mentioned.
Journal title
Journal of Combinatorial Theory Series A
Serial Year
2004
Journal title
Journal of Combinatorial Theory Series A
Record number
1530862
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