February 2011 March 2011 April 2011 Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa 1 2 3 4 5 1 2 3 4 5 1 2 6 7 8 9 10 11 12 6 7 8 9 10 11 12 3 4 5 6 7 8 9 13 14 15 16 17 18 19 13 14 15 16 17 18 19 10 11 12 13 14 15 16 20 21 22 23 24 25 26 20 21 22 23 24 25 26 17 18 19 20 21 22 23 27 28 27 28 29 30 31 24 25 26 27 28 29 30 |

11:00 am Tuesday, March 15, 2011 Oral Defense: Self-Inverses in Rauzy Classesby Jon Fickenscher (Rice University) in HB 227- Thanks to works by M. Kontsevich and A. Zorich followed by C. Boissy, we have a classification of all Rauzy Classes of any given genus. It follows from these works that Rauzy Classes are closed under the operation of inverting the permutation. In this paper, we shall prove the existence of self-inverse permutations in every Rauzy Class by giving an explicit construction of such an element satisfying the sufficient conditions. As a corollary, we will give another proof that every Rauzy Class is closed under taking inverses. In the case of generalized permutations, generalized Rauzy Classes have been classified by works of M. Kontsevich, H. Masur and J. Smillie, E. Lanneau, and again C. Boissy. We state the definition of self-inverse for generalized permutations and prove a necessary and sufficient condition for a generalized Rauzy Class to contain self-inverse elements.
Submitted by jonfick@rice.edu |