Colloquium
3:00 p.m., Friday (February 3, 2006)
MATX 1100
Frank den Hollander
University of Leiden, EURANDOM
Random walk in random scenery
In this talk we address the question: ``What do you see when you randomly move through a
random landscape?''. Specifically, we consider the example of a random walk on the
ddimensional integer lattice whose sites are colored black or white in some random fashion.
We look at the sequence of colors the walk encounters on its way (the ``color record'').
We show that this random sequence has some remarkable ergodic properties, depending on the
dimension d and on the way in which the lattice is randomly colored.
Refreshments will be served at 2:45 p.m. (MATX 1115, Math Lounge).
