Tel Aviv University Dear all, This week at the Horowitz seminar on Probability, Ergodic Theory and Dynamical Systems at Tel Aviv University we are happy to have: Speaker: Ross Pinsky, Technion Title: Probabilistic and Combinatorial Aspects of the Card-Cyclic to Random Insertion Shuffle Date: Monday, April 23 Time: 14:30 Place: Schreiber 309 Abstract: Consider a permutation pi in S_n as a deck of cards numbered from 1 to n and laid out in a row, where pi(j) denotes the number of the card that is in the j-th position from the left. We study some probabilistic and combinatorial aspects of the shuffle on S_n defined by removing and then randomly reinserting each of the n cards once, with the removal and reinsertion being performed according to the original left to right order of the cards. The novelty here in this nonstandard shuffle is that every card is removed and reinserted exactly once. The bias that remains turns out to be quite strong, and takes on some unusual forms. See the printed abstract at: <http://www.math.tau.ac.il/%7Epeledron/Horowitz_seminar/Pinsky_abstract.pdf> 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>