Tel Aviv University Dear all, This week's Horowitz seminar will feature TWO speakers. NOTE THE SPECIAL START TIME!!! Monday, December 12, 2011 We will start at 14:10 sharp with Alexandre Stauffer from Microsoft Research who will speak for the first hour. Then, after a short break, we will continue with Tom Ellis from Tel Aviv University speaking for the second hour. We will end at 16:00. Meeting place is room 309 as usual. Stauffer title: Space-time percolation and detection by mobile nodes. Abstract: See separate announcement. Ellis title: The Brownian web is a two dimensional black noise. Abstract: The Brownian web is a stochastic process constructed from Brownian motions, and was one of the first known examples of a "black noise" in the sense of Tsirelson. I will discuss what it means to be a black noise, and demonstrate how the Brownian web is in fact a two-dimensional black noise. It is only the second known example of a two-dimensional black noise after Schramm and Smirnov's result on the scaling limit of critical planar percolation. Joint work with Ohad Feldheim. Best regards, Ron Seminar webpage: <http://www.math.tau.ac.il/~peledron/Horowitz_seminar/Horowitz_seminar.html> --------------------------------------------------------- Technion Math Net-2 (TECHMATH2) Editor: Michael Cwikel <techm@math.technion.ac.il> Announcement from: Ron Peled <peledron@gmail.com>