Title of article
A note on the spectra of certain skew-symmetric {1,0,−1}-matrices
Author/Authors
Gerhard Wesp، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
8
From page
339
To page
346
Abstract
We characterize skew-symmetric {1,0,−1}-matrices with a certain combinatorial property. In particular, we exhibit several equivalent descriptions of this property. These results allow characterizations of unimodular orientations of the complete graph, of rank 2 chirotopes, and of a class of multipartite oriented graphs.
Keywords
Pfaffina form , Skew-symmetric matrix , Chirotope , Oriented matriod , Unimodular matrix , Tournament graph , Eigenvalue
Journal title
Discrete Mathematics
Serial Year
2002
Journal title
Discrete Mathematics
Record number
949387
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