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Talk:Quasi-metric

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Revision as of 19:36, 6 March 2016 by Richard Pinch (talk | contribs) (Definition inconsistency)
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Definition

The citation Schroeder (2006) gives an different definition of quasi-metric [1]:

  • $d(x,y) \ge 0$ and $=0$ iff $x=y$ (positive definite);
  • $d(x,y) = d(y,x)$ (symmetric);
  • there is a constant $K \ge 1$ such that $d(x,y) \le K \max\{d(x,z),d(z,x)\}$.

Richard Pinch (talk) 20:36, 6 March 2016 (CET)

How to Cite This Entry:
Quasi-metric. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Quasi-metric&oldid=37707