ELibM Journals • ELibM Home • EMIS Home • EMIS Mirrors

  EMIS Electronic Library of Mathematics (ELibM)
The Open Access Repository of Mathematics
  EMIS ELibM Electronic Journals

JOURNAL OF
ALGEBRAIC
COMBINATORICS

  Editors-in-chief: C. A. Athanasiadis, T. Lam, A. Munemasa, H. Van Maldeghem
ISSN 0925-9899 (print) • ISSN 1572-9192 (electronic)
 

The Automorphism Group and the Convex Subgraphs of the Quadratic Forms Graph in Characteristic 2

A. Munemasa , D.V. Pasechnik and S.V. Shpectorov

DOI: 10.1023/A:1022428002320

Abstract

We determine the automorphism group and the convex subgraphs of the quadratic forms graph Quad( n,q), q even.

Pages: 411–419

Keywords: association scheme; distance-regular graph; space of quadratic forms; automorphism group; convex subgraph

Full Text: PDF

References

1. A.E. Brouwer, A.M. Cohen, and A. Neumaier, Distance-Regular Graphs, Springer, Berlin-Heidelberg, 1989.
2. Y. Egawa, "Association schemes of quadratic forms,"
7. Combin. Theory Series A 38 (1985), 1-14.
3. J. Hemmeter, and A. Woldar, "The complete list of maximal cliques of the Quad (n, q), q even," preprint.
4. L. -K. Hua, "Geometry of symmetric matrices over any field with characteristic other than two," Ann. Math. SO (1949), 8-31.
5. E.W. Lambeck, " Contributions to the theory of distance regular graphs," Ph.D. thesis, Technical University Eindhoven, 1990.
6. M.-L. Liu, "Geometry of alternate matrices," Ada Math. Sinica 16 (1966), 104-135.
7. A. Munemasa, D.V. Pasechnik, and S.V. Shpectorov, "A local characterization of the graphs of alternating forms and the graphs of quadratic forms over GF(2)," to appear.




© 1992–2009 Journal of Algebraic Combinatorics
© 2012 FIZ Karlsruhe / Zentralblatt MATH for the EMIS Electronic Edition