Brown Bag Seminars



Fall 2009

  • Wednesday, September 2, 2009
    Helge Krüger
    Regularity = Vanishing of the Lyapunov Exponent on the Spectrum
    12:00 – 1:00 p.m.  //  HB 423  

  • Wednesday, September 9, 2009
    Jon Chaika
    Every Transformation is Disjoint From Almost Every IET
    12:00 – 1:00 p.m.  //  HB 423  

  • Wednesday, September 16, 2009
    Sergey Belov
    Long-Time Asymptotics of the Nonlinear Schrödinger Equation Shock Problem
    12:00 – 1:00 p.m.  //  HB 423  

  • Wednesday, September 23, 2009
    Zheng Gan
    Limit-Periodic Schrödinger Operators with Pure Point Spectrum
    12:00 – 1:00 p.m.  //  HB 423  

  • Wednesday, September 30, 2009
    Helge Krüger
    Semiclassical Results for Gaps in the Spectrum of the Almost Mathieu Operator
    12:00 – 1:00 p.m.  //  HB 423  

  • Wednesday, October 14, 2009
    Jon Fickenscher
    The Simplicity of the Lyapunov Spectrum for Rauzy Monoids
    12:00 – 1:00 p.m.  //  HB 423  

  • Wednesday, October 21, 2009
    Jon Fickenscher
    The Simplicity of the Lyapunov Spectrum for Rauzy Monoids II
    12:00 – 1:00 p.m.  //  HB 423  

  • Wednesday, October 28, 2009
    Sergey Belov
    Determinant Form of the Complex Phase Function of the Steepest Descent Analysis of Riemann-Hilbert Problems and its Application to the Focusing Nonlinear Schrödinger Equation
    12:00 – 1:00 p.m.  //  HB 423  

  • Wednesday, November 11, 2009
    Zheng Gan
    Limit-Periodic Schrödinger Operators with Pure Point Spectrum II
    12:00 – 1:00 p.m.  //  HB 423  

  • Wednesday, TBD
    Janine Dahl
    Hyperbolicity of the Trace Map and the Spectrum of the Off-Diagonal Fibonacci Hamiltonian
    12:00 – 1:00 p.m.  //  HB 423  



Spring 2009

  • Friday, January 23, 2009
    Helge Krüger
    On the Integrated Density of States
    12:00 – 1:00 p.m.  //  HB 423  

  • Friday, January 30, 2009
    Jon Chaika
    Borel-Cantelli Sequences and Shrinking Target Properties
    12:00 – 1:00 p.m.  //  HB 423  

  • Friday, February 20, 2009
    Janine Dahl
    Hyperbolic Dynamics
    12:00 – 1:00 p.m.  //  HB 423  

  • Wednesday, February 25, 2009
    Helge Krüger
    Dvir's Proof of Wolff's Finite Field Kakeya Conjecture
    12:00 – 1:00 p.m.  //  HB 423  

  • Friday, March 13, 2009
    Zheng Gan
    Spectrum of Limit Periodic Schrödinger Operators - Positive Lyapunov Exponents and Zero Hausdorff Dimension
    12:00 – 1:00 p.m.  //  HB 423  

  • Friday, March 27, 2009
    Helge Krüger
    Multiscale Analysis for Ergodic Schrödinger Operators and Positivity of Lyapunov Exponents for Potentials Given by High-Dimensional Skew-Shifts at Small Coupling
    12:00 – 1:00 p.m.  //  HB 423  

  • Wednesday, April 1, 2009
    Zheng Gan
    Limit Periodic Schrödinger Operators in the Regime of Positive Lyapunov Exponents II
    12:00 – 1:00 p.m.  //  HB 423  

  • Friday, April 10, 2009
    Jon Fickenscher
    Weak Mixing for Interval Exchange Transformations and Translation Flows
    12:00 – 1:00 p.m.  //  HB 423  

  • Friday, April 17, 2009
    Jon Chaika
    A Brief Introduction to Ergodic Theory
    12:00 – 1:00 p.m.  //  HB 423  



Fall 2008

  • Wednesday, September 3, 2008
    Helge Krüger
    Approximating Discrete Schrödinger Operators by Finite Sections
    12:30 – 1:30 p.m.  //  HB 423  

  • Wednesday, September 10, 2008
    Jon Chaika
    An Introduction to Continued Fractions
    12:30 – 1:30 p.m.  //  HB 423  

  • Wednesday, September 17, 2008
    David Damanik
    The Survival Probability in Quantum Dynamics
    12:30 – 1:30 p.m.  //  HB 423  

  • Wednesday, October 1, 2008
    Helge Krüger
    An Introduction to Quasi-Periodic Localization
    12:30 – 1:30 p.m.  //  HB 423  

  • Wednesday, October 8, 2008
    Zheng Gan
    Quantum Dynamics and Decompositions of Singular Continuous Spectra
    12:30 – 1:30 p.m.  //  HB 423  

  • Friday, October 17, 2008
    Sergey Belov
    Riemann-Hilbert Problems
    12:30 – 1:30 p.m.  //  HB 423  

  • Wednesday, October 22, 2008
    Sergey Belov
    Inverse Scattering for Cubic NLS Through RH Problems
    12:30 – 1:30 p.m.  //  HB 423  

  • Wednesday, November 5, 2008
    Jon Fickenscher
    A Question About Fundamental Regions For Fuchsian Groups
    12:30 – 1:30 p.m.  //  HB 423  

  • Wednesday, November 12, 2008
    David Damanik
    Coefficient Stripping and Sum Rules for Jacobi Matrices
    12:30 – 1:30 p.m.  //  HB 423  

  • Wednesday, December 3, 2008
    Janine Dahl
    The Dimension of the Spectrum of the Off-Diagonal Fibonacci Hamiltonian
    12:30 – 1:30 p.m.  //  HB 423