Home Publications Undergraduates Postgraduates Postdocs Calendar Contact

  Jeroen Lamb  
  Martin Rasmussen  
  Dmitry Turaev  
  Sebastian van Strien  
Mike Field
Fabrizio Bianchi
Trevor Clark
Nikos Karaliolios
Alex Athorne
Sajjad Bakrani Balani
Andrew Clarke
Maximilian Engel
Michael Hartl
Giuseppe Malavolta
Guillermo Olicón Méndez
Cezary Olszowiec
Christian Pangerl
Francesco Ricci
Matteo Tanzi
Kalle Timperi
Anna Maria Cherubini
Carlos Siquiera
Bill Speares
Mauricio Barahona
Davoud Cheraghi
John Elgin
Darryl Holm
Greg Pavliotis

DynamIC Seminars (Complete List)

Name Title Date Time Room
André de Carvalho (USP)TBSpAgs: Super generalized pseudo-Anosov mapsAbstract: The purpose of this talk is not to set a new record for the number of noun modifiers in mathematical definitions, but to present a construction which applies to graph maps in general and yields interesting surface homeomorphisms as follows: 1) a pseudo-Anosov map if the graph map is a train track map; 2) a generalized pseudo-Anosov map if the graph map is post-critically finite and has an irreducible aperiodic transition matrix; 3) an interesting type of surface homeomorphisms which generalizes both the previous classes otherwise. In particular, this produces a unified construction of surface homeomorphisms whose dynamics mimics that of the tent family of interval endomorphisms, completing an earlier construction of unimodal generalized pseudo-Anosov maps in the post-critically finite case. This is joint work with Phil Boyland and Toby Hall. Tuesday, 6 December 2016 14:00 Huxley 340
Raj Prasad (University of Massachussetts)Multitowers, conjugacies and codesAbstract: Tuesday, 13 December 2016 11:00 Huxley 642
Mark Pollicott (University of Warwick)TBAAbstract: TBA Tuesday, 13 December 2016 14:00 Huxley 340
Julian Newman (University of Bielefeld)Topological conjugacy of iterated random orientation-preserving homeomorphisms of the circleAbstract: Suppose we have a parameter-dependent orientation-preserving circle homeomorphism, together with a probability measure $\nu$ on the parameter space. This naturally generates a "random dynamical system" on the circle, where at each time step a parameter is randomly chosen with distribution $\nu$ (independently of all previous time steps) and the associated homeomorphism is applied. Given two parameter-dependent orientation-preserving homeomorphisms defined over the same parameter space (with the same measure), one can define a notion of "topological conjugacy" between the random dynamical systems that they generate. Under certain assumptions, we will classify such parameter-dependent homeomorphisms up to topological conjugacy. Tuesday, 13 December 2016 15:00 Blackett 113
Tomoo Yokoyama (Kyoto University of Education)Topological transitivity and representability of surfaces flowsAbstract: In this talk, we present a necessary and sufficient condition for the existence of dense orbits of continuous flows on compact connected surfaces, which is a generalization of a necessary and sufficient condition on area-preserving flows obtained by H. Marzougui and G. Soler López. We also consider what class of flows on compact surfaces can be characterized by finite labeled graphs. In particular, a class of surface flows, up to topological conjugacy, which contains both the set of Morse Smale flows and the set of area-preserving flows with finite singular points is classified by finite labeled graphs. Finally, we discuss applications to fluid dynamics. Wednesday, 15 March 2017 14:00 Huxley 130

DynamIC Workshops and Mini-Courses (Complete List)

Title Date Venue
Parameter Problems in Analytic DynamicsMonday, 27 June 2016 – Friday, 1 July 2016Imperial College London

Short-term DynamIC Visitors (Complete List)

Ricardo Perez-Marco Institut de Mathematiques de Jussieu Tuesday, 13 December 2016 Tuesday, 20 December 2016 Cheraghi, van Strien