A graph-theoretical invariant of topological spaces

نویسندگان

  • Andreas W. M. Dress
  • Katharina T. Huber
  • Jacobus H. Koolen
  • Vincent Moulton
چکیده

Given a topological space T and a finite subset T0 of T , we associate two graphs with T and T0 that, under rather mild conditions, turn out to be a block graph and a tree, respectively. This construction is of interest, e.g., in the context of phylogenetic analysis where T may model a full ‘‘orbit’’ of a dynamical branching process, and T0 the set of its branching points. © 2008 Elsevier Ltd. All rights reserved.

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عنوان ژورنال:
  • Appl. Math. Lett.

دوره 22  شماره 

صفحات  -

تاریخ انتشار 2009