In the next sections we describe in axiomatic-combinatorial terms what the chemists call structure and stereoformulas. To enhance the clarity of the exposition I provide more than the bare essentials. I begin by repeating some known definitions in graph theory. Some problems touched upon in the Introduction are going to be presented “officially” later on. I will adhere as much as possible to the terminology used by D. König in his elegant text.1 I will highlight where substantial departure seemed to better serve the special purpose of this paper.


Functional Equation Centric Tree Permutation Group Arbitrary Graph Exceptional Point 
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Copyright information

© Springer-Verlag New York Inc. 1987

Authors and Affiliations

  • G. Pólya
  • R. C. Read
    • 1
  1. 1.Department of Combinatorics and OptimizationUniversity of WaterlooWaterlooCanada

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