Semiflows induced by length metrics: On the way to extinction

Details Semiflows induced by length metrics: On the way to extinction Semiflows induced by length metrics: On the way to extinction

2012-03-07

arxiv.org/abs/1203.1467v1

Mathematics

Geometric Topology

39 pages, 10 figures

Scientific paper

Bing and Moise proved, independently, that any Peano continuum admits a length metric d. We treat non-degenerate Peano continua with a length metric as evolution systems instead of stationary objects. For any compact length space (X, d) we consider a semiflow in the hyperspace $2^X$ of all non-empty closed sets in X. This semiflow starts with a canonical copy of the Peano continuum (X,d) at t = 0 and, at some time, collapses everything into a point. We study some properties of this semiflow for several classes of spaces, manifolds, graphs and finite polyhedra among them.

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