The Budapest - Wien Dynamics seminar

Events before September 2019

•    3 May 2019, Budapest University of Technology and Economics (local information here):
    
  
  •  Mike Todd (U of St.Andrews):  Escape rates for multimodal maps with holes. 
  
  
  • Nandor Simanyi (Birmingham, AL):  Asymptotic homotopic complexity of 2D dispersing billiards.
    
    
  • Domokos Szasz (Budapest):   Andras Kramli (1943-2019).
    

•  5 April 2019, University of Vienna:  
     
  •  Abel Farkas (Renyi Institute):  Interval projections of self-similar sets. 
    
    
  •  Peter Balint (BME Budapest):  Marked length spectrum and the geometry of open dispersing billiards.
    
    
  •  Maja Resman (U Zagreb):   Formal classification of power-logarithmic germs and fractal approach.
    
    

•    1 March 2019, Budapest University of Technology and Economics (local information here):  
     
  
  •   Karoly Simon   (BME Budapest):    Hausdorff dimension for som non-Markovian repellers. 
    
    
  •   Maik Gröger   (U Vienna):    Amorphic complexity, substitution subshifts and iterated function systems.
    
    
  •   Henk Bruin (U Vienna): Limit laws for almost Anosov flows.

•    25 January 2019, University of Vienna:  
     
  
  •   Karoly Simon   (BME Budapest):    Hausdorff dimension of some non-conformal attractors. 
    
    
  •   Sascha Troscheit  (U Vienna):   Self-conformal sets with positive Hausdorff measure.
    
    
  •   Benjamin Vejnar   (Prague):    Complexity of the homeomorphism relation between compact spaces.

•    9 November 2018, Budapest University of Technology and Economics (local information here):  
     
  
  •   Michal Rams  (Impan Warsaw): Badly approximable numbers for irraional rotation.   
    
    
  •   Feliks Przytycki  (Impan Warsaw): Geometric coding trees for iterations of rational maps.
    
    
  •   Alejandro Kocsard  (Univ Federal Fluminense):  The Burnside problem for groups of diffeomorphisms.

•    20 September 2018, University of Vienna:  
     
  
  •   Dalia Terhesiu (Exeter):   Mixing for some Z-extensions of suspension flows. 
    
    
  •   Balazs Barany (Budapest):  Dimension of planar self-affine measures with application to Birkhoff and Lyapunov spectra.
    
    
  •   Gabriel Fuhrmann (Imperial College):  Unique ergodicity and zero entropy of irregular symbolic extensions of irrational rotations.

•    27 April 2018, Budapest University of Technology and Economics (local information here):  
     
  
  •  Karoly Simon (BME Budapest):  Hausdorff dimnsion for triangular self-affine IFS.
    
    
  •  Alexey Korepanov (Exeter):  Strength of strong approximation with a Brownian motion.
    
    
  •  Thomas Gilbert (Brussels):  The stochastic Lotka-Volterra predator-prey model: it keeps cycling on!
    
      

•    2 March 2018, University of Vienna:  
  
  
  •   Manos Zafeiropoulos (Graz):  Inhomogeneous Diophantine Approximation on M_0 sets.
    
    
  •   Balazs Barany (Budapest):  Almost multiplicativity of planar matrix cocycles and the difference between quasi-Bernoulli and Gibbs measures.
    
    
  •   Benoit Kloeckner (Paris Est):  Optimal transportation, transfer operators and decay of correlations. 
                

• 20 Dec 2017, Budapest University of Technology and Economics (local information here):  
  
  
  •   https://math.bme.hu/~selley/indexeng.htmlFanni Selley (BME Budapest):  Stability of the invariant distribution in infinite systems of coupled maps.
    
    
  •   Françoise Pène (Brest):  Stochastic properties of the Z² periodic Sinai billiard.
    
    
  •   Benoit Saussol (Brest):  Spatio-temporal Poisson process for visits to small sets in hyperbolic dynamics.

• 20 Oct 2017,  University of Vienna:
  
  
  •   Jun Luo (Chongqing University):  Lipschitz equivalence of self-similar fractals.
    
    
  •   Michal Rams (Warsaw):  Lyapunov spectra of matrix cocycles.
    
    
  •   Nandor Simanyi (Birmingham, AL):  Noncommutative Rotation Vectors for Certain Cylindrical Billiards.

• 30 June 2017,  Budapest University of Technology and Economics (local information here):
  
  
  •   Peter Kevei (University od Szeged):  On the tail of the solution of random fixed point equations.
    
    
  •   Henk Bruin (U Vienna): Regular variation for almost Anosov diffeomorphism. 
    
    
  •   Mike Todd (U of St.Andrews):  Analysis of a transient interval map.

• 28 April 2017,  University of Vienna:
  
  
  •    Sonja Stimac (University of Zagreb):  Lozi-like maps.
    
    
  •    Fanni Selley (BME Budapest):  Coupled map systems with a continuum of sites. 
    
    
  •    Stefano Marmi (SNS Pisa):  Small divisors and interval exchange maps.

• 3 Mar 2017,  Budapest University of Technology and Economics (local information here):
  
  
  •    Karoly Simon (BME Budapest):  Singularity of self-similar measures.
    
    
  •    Thomas Jordan (Bristol):  Self-affine sets and Assouad dimension.
    
    
  •    Vadim Kaloshin (Maryland & ETH):  Birkhoff conjecture for convex planar billiards
                                                              and deformational spectral rigidity of planar domains.

• 26 Jan 2017,  University of Vienna:
  
  
  •  Jiri Cerny (U Vienna):  Maximum of Branching Random Walk in Random Environment. 
    
    
  •  Imre Peter Toth (Budapest):  Rare interaction limit and the evolution of unstable
                                                manifolds in a deterministic heat conduction model.

•    9 Dec 2016,  University of Vienna: 
     
  •  Henk Bruin (U Vienna):  Return time statistics: varying limits. 
    
    
  •  Peter Balint (BME Budapest):  Improved upper bound on the rate of mixing for the map of two falling balls.
    
    

•   28 Oct 2016, Budapest University of Technology and Economics:
  
  
  •   Karoly Simon (Budapest):  Hausdorff dimension of certain self-affine attractors.
    
    
  •   Michal Rams (Warsaw):  Inhomogneous Diophantine Approximations.
    
    
  •    Roland Zweimüller (Vienna):  Poisson limits for rare events in probability preserving systems.
    
    
    

•   8 Apr 2016, ESI Vienna, part of thematic programme 
  
  
  •   Maciej Wojtkowski (Opole): Integrable and chaotic Gaussian thermostats on some homogeneous spaces. 
    
    
  •   Jozef Bobok (Prague):  (Quasi)similarity of polygonal billiards.
    
    
  •    Balazs Barany (Budapest):  Ledrappier-Young formula and exact dimensionality of self-affine measures.
    
    
    
•  26 Feb 2016, Budapest University of Technology and Economics:
  
  
  • Zoltan Buczolich (Budapest): Convergence of ergodic averages for many group rotations.
    
    
  • Henk Bruin (Vienna): Sharp mixing rates via inducing w.r.t. general return times.
    
    

•   4 Dec 2015, Budapest University of Technology and Economics:
  
  
  •   Alexey Korepanov (Warwick):
      Linear response for intermittent maps with summable and nonsummable decay of correlations.
    
    
  •   Roland Zweimüller (Vienna): Functional stable and related limit theorems for (some) dynamical systems.
    
    
  •   Imre Peter Toth  (Budapest): Equidistribution for singular measures in planar dispersing billiard flows.
    
   
  

•   2 Oct 2015, ESI Vienna, final day of workshop:   
  
    An afternoon of jolly good talks about this and that, plus an even better evening!
  
  
  •  Feliks Przytycki (IMPAN, Warsaw): 
    Geometric pressure in real and complex 1d dynamics via trees of pre-images and via spanning sets.
    
    
  •  Fanni Selley (BME Budapest):  Mean field coupling of identical expanding circle maps. 
    
    
  •  Mariusz Urbanski (Univ of Texas at Denton):  Random dynamics of transcendental meromorphic functions.
    

• 29 May 2015, University of Vienna:
  
  
  • Andras Nemedy Varga (Budapest): The flow of two falling balls mixes rapidly.
    
    
  • Simon Rechberger (Vienna):  On the relation of return- and hitting time limits in infinite ergodic systems.
    
    
  • Ian Morris (Surrey): The transfer operator for the binary Euclidean algorithm.
    
    

• 24 April 2015, Budapest University of Technology and Economics:
  
  
  • Zemer Kosloff (Warwick): Conservative Anosov maps on the 2-torus without absolutely continuous invariant measures.
    
    
  • Thomas Gilbert (Brussels):  Multi-state Lévy walks to describe the kinetics of diffusive processes combining ballistic motion.
    
    
  • Vadim Kaimanovich (Ottawa):  Stopping times and Poisson boundaries.
    
    
    

• 27 March 2015, University of Vienna:
  
  
  • Michael Tsiflakos (Vienna):  N falling balls are globally ergodic.
    
    
  • Lajos Vágó  (Budapest):   A parametrized family of refinement
    equations and applications to projections of generalized fractal percolations.
    
    
  • Viviane Baladi (DMA ENS Paris): The spectrum of Sinai billiard flows.
    

•   27 Feb 2015, Budapest University of Technology and Economics:  
  
  
  • Atahualpa S. Kraemer (Düsseldorf): On the free path lengths distribution for quasiperiodic Lorentz gases.
    
    
  • Mike Todd (St Andrews): Dynamical systems with holes: slow mixing cases.
    
    
  • Stefano Luzzatto (ICTP Trieste):  SRB measures for partially hyperbolic systems whose central direction is weakly expanding.
    
    

•   12 Dec 2014, University of Vienna: 
  
  
  • Henk Bruin (Vienna):  A renewal scheme for non-uniformly hyperbolic semiflows II.
                                     On tail estimates of cropped transfer operators.
    
    
  • Istvan Berkes (Graz):  Irrational rotations, GCD sums and the Khinchin conjecture.
    
    
  • Benoit Saussol (Brest):  Exponential law for random subshifts of finite type.
    
    
    
•  14 Nov 2014, Budapest University of Technology and Economics: 
  
  
  • István Kolossváry (Budapest): On the local Hölder exponents of deRham-like fractal curves.
    
    
  • Françoise Pène (Brest):  Asymptotic poissonity of the number of visits to small balls.

•   17 Oct 2014, University of Vienna: 
  
  
  •   Pawel Pilarczyk (IST Austria):  Perception of transitivity and mixing at finite resolutions.  
    
    
  •   Dalia Terhesiu (Vienna):  A renewal scheme for non-uniformly hyperbolic flows.
    
    
  •   Carl Dettmann (Bristol):  Stickiness in mushroom billiards.
    
    

•   19 Sept 2014, Budapest University of Technology and Economics: 
  
  
  •   Zsolt Pajor-Gyulai (Maryland): From averaging to homogenization in cellular flows- an exact description of the transition.
    
    
  •   Roland Zweimüller (Vienna): Return- and hitting-time limits for rare events in infinite measure preserving systems.
    
    
  •   Domokos Szasz & Peter Balint (Budapest): On the work of Nicolai Chernov.
    

•  13 June 2014, University of Vienna: 
   
  •  Peyman Eslami (Rome):  Decay of correlations for skew products with discontinuities.
    
    
  •  Mohammad Soufi (ICTP Trieste):  Statistical stability for the geometric Lorenz attractor.
    
    
  •  Stefano Galatolo (Pisa):  Rigorous computing of the invariant measure in Lorenz like systems.

• 8 May 2014,  Budapest University of Technology and Economics:  
  
  
  •  Nandor Simanyi (Birmingham, AL):  The Boltzmann-Sinai hypothesis: A mystery solved.
    
    
  •  Tamas Tel (Budapest):  Absorbing billiards and other dynamical systems.
    
    
  •  Oscar Bandtlow (London):  Hölder continuity of the topological entropy for expanding interval maps with holes.
    
    
    
• 7 March 2014,  University of Vienna:  
  
  
  • Mikko Stenlund (Helsinki): Coupling for a random dynamical system.
  
  
  • Damien Thomine (Rennes):  Local time and first return time of periodic semi-flows.
    
    
  • Domokos Szasz (Budapest):  Local ergodicity - a survey.
    
    

• 31 Jan 2014,  Budapest University of Technology and Economics:
  
  
  • http://www.math.helsinki.fi/mathphys/mikko.htmlDalia Terhesiu (Vienna): Sharp mixing rates for some infinite measure preserving semiflows.
    
    
  • András Némedy Varga (Budapest): High dimensional generalization of standard pairs and the coupling technique.
    
    

• 13 Dec 2013,  University of Vienna:
  
  

  • http://www.math.helsinki.fi/mathphys/mikko.html Balázs Bárány (Budapest): On the dimension of the graph of the classical Weierstrass functions.
    
    
  • Mathias Beiglböck (Vienna): The Ergodic Theorem, Optimal Transport, and Applications.
    
    
    
• 25 Oct 2013,  Budapest University of Technology and Economics:
  
  
  • Mikko Stenlund (Helsinki): An Adiabatic Dynamical System as a Stochastic Process.
    
    
  • Oliver Butterley (Vienna): The Lorenz flow and some functional analysis.
    
    

• 20 September 2013,  University of Vienna:
  
  
  • Karoly Simon (Budapest):  Slices of generalized Sierpinski carpets. 
    
    
  • Tobias Jäger (Dresden):  Minimal set of torus homeomorphisms.
    
    
  • Evgeny Verbitskiy (Leiden):  Expansivity and homoclinic points in algebraic dynamics.
    

• 24 May 2013,  Budapest University of Technology and Economics:
  
  
  
  • Mark Demers (Fairfield):  Perturbations of dispersing billiards via spectral methods.
    
    
  • Zoltan Buczolich (Budapest):  Averages along the squares and related topics.
    
    
• 12 April 2013,  University of Vienna:
    
  
  • Dalia Terhesiu (Rome): Mixing for some non-uniformly hyperbolic systems with infinite measure.
    
    
  • Marta Tyran-Kaminska (Katowice): Continuous time random walks and limit theorems.
    
    
  • Roland Zweimüller (Vienna): Stochastically stable globally coupled maps with bistable thermodynamic limit.
  
  
  
• 1 March 2013,  Budapest University of Technology and Economics:
    
  
  • Klaus Schmidt (Vienna):  Entropy and periodic points for (commuting) group automorphisms.
    
    
  • Peter Nandori (Budapest):  Lorentz process with shrinking holes in a wall.
    
  
  

• 25 Jan 2013,  University of Vienna:    
  
  
  • Peter Balint (Budapest):  Limit laws and convergence of moments for dispersing billiards with cusps.
    
  • Carlangelo Liverani (Rome):  Statistical properties of maps close to a trivial extension.
    
  • Gerhard Keller (Erlangen):  Stability index for chaotically driven concave maps.
    
    

• 14 Dec 2012,  Budapest University of Technology and Economics:
   
  
  •  Roland Zweimüller (Vienna): Dissipative dynamics as a tool for conservative systems.
    
    
  •  Imre Peter Toth (Budapest): Complexity of singularities and growth of unstable manifolds in planar dispersing billiards with corner points.
    

• 23 Nov 2012,  University of Vienna:
   
  •  Oliver Butterley (Vienna):  Operator semigroups associated to continuous time dynamical systems.
    
    
  •  Peter Nandori (Budapest): On Dettmann's "horizon"-conjectures.
    
    
  •  Ian Melbourne (Warwick): Convergence of fast-slow ODEs and maps to stochastic differential equations with multiplicative noise.
     

• 21 Sept 2012,  Budapest University of Technology and Economics:                      
  
  
  • Henk Bruin (Vienna):   Thermodynamics for Lebesgue dissipative interval maps.
    
    
  • Pablo Shmerkin (Surrey):   Continuity of subadditive Pressure.