Interval translation maps and billiards with spy mirrors

Serge Troubetzkoy
I2M, Aix-Marseille Université
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Date(s) : 13/01/2015   iCal
11 h 00 min - 12 h 00 min

A not necessarily piecewise isometry of the interval is called an interval translation map; the well known invertible case is known as an interval exchange. Interval translation maps arise as first return maps in rational polygonal billiards with spy mirrors.
I will speak on recent results with Sasha Skripchenko on the topological entropy and complexity of polygonal billiards with spy mirrors.

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