Is the null-graph a pointless concept?

  • Frank Harary
  • Ronald C. Read
Part I: Invited Papers

DOI: 10.1007/BFb0066433

Volume 406 of the book series Lecture Notes in Mathematics (LNM)
Cite this paper as:
Harary F., Read R.C. (1974) Is the null-graph a pointless concept?. In: Bari R.A., Harary F. (eds) Graphs and Combinatorics. Lecture Notes in Mathematics, vol 406. Springer, Berlin, Heidelberg

Abstract

The graph with no points and no lines is discussed critically. Arguments for and against its official admittance as a graph are presented. This is accompanied by an extensive survey of the literature. Paradoxical properties of the null-graph are noted. No conclusion is reached.

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Copyright information

© Springer-Verlag Berlin 1974

Authors and Affiliations

  • Frank Harary
    • 1
    • 2
  • Ronald C. Read
    • 3
  1. 1.University of MichiganUSA
  2. 2.Oxford UniversityUK
  3. 3.University of WaterlooUSA