Courant Institute of Mathematical Sciences,
New York University

Mathematics Colloquium

Mondays, 3:45pm in room 1302; tea at 3:15

The Mathematics Colloquium offers survey talks in mathematics and related fields. A colloquium talk offers a broad overview for a general mathematical audience rather than technical details for specialists.

The colloquium meets on Mondays at 3:45 p.m. in room 1302 of Warren Weaver Hall at 251 Mercer Street, New York.
Colloquium Tea Preceding Talks 3:15-3:45 pm in the lounge (13th floor).

Organizers: Scott Armstrong and Leif Ristroph

Spring 2017 Colloquia

Abstract "High dimensional sparse approximation of elliptic PDEs with lognormal coefficients"
Albert Cohen,
Université Pierre et Marie Curie, Paris
Monday, January 30 at 3:45 P.M.

Abstract"Stability theorems for geometric variational problems"
Francesco Maggi, ICTP, Trieste
Monday, February 13 at 3:45 P.M.

Abstract"Subexponential growth, measure rigidity, strong property (T) and Zimmer's conjecture"
David Fisher, Indiana University
Monday, February 20 at 3:45 P.M.

Abstract"From the liquid drop model for nuclei to the ionization conjecture for atoms" 
Rupert Frank, LMU Munich and Caltech
Monday, March 20 at 3:45 P.M.

Abstract"Harmonic Functions and Irreducible Affine Representations" 
Hillel Furstenberg, Hebrew University, Jerusalem
Monday, April 3 at 3:45 P.M.

Abstract "Phase transitions in Random Constraint Satisfaction Problems"
Allan Sly, Princeton University
Monday, April 17 at 3:45 P.M.

TBA:
Antonella Grassi, University of Pennsylvania
Monday, May 8 at 3:45 P.M.


Fall 2016 Colloquia

Abstract:  "Energy Identity for Stationary Yang Mills"
Aaron Naber, Northwestern University
Monday, November 14 at 3:45 P.M.

Abstract"Prime number theorems for hyperbolic manifolds and rational maps" 
Hee Oh, Yale University
Monday, November 21 at 3:45 P.M.

Abstract"Nonlocality in Fluids"
Peter Constantin, Princeton University
Monday, December 5 at 3:45 P.M.

Abstract"Uniqueness of weak solutions to the Ricci flow and topological applications"
Richard Bamler, UC Berkeley
Monday, December 12 at 3:45 P.M.


Spring 2016 Colloquia

Abstract:  "A quantitative theory of stochastic homogenization"
Scott Armstrong, CNRS
Université Paris-Dauphine
Monday, February 1 at 3:45 P.M.

Abstract
"Statistical Methods in Climatology"
Michael Stein, University of Chicago
Monday, February 29 at 3:45 P.M.

Abstract"On the (un)reasonable (in)effectiveness of mathematics in biology"
Stanislas Leibler, The Rockefeller University and Institute for Advanced Study
Monday, March 28 at 3:45 P.M.

Abstract "Planar Ising Model:  random fields and curves, discrete and continuous structures"

Clément Hongler, Ecole Polytechnique Fédérale de Lausanne
Monday, April 4 at 3:45 P.M.

Abstract"Geometric prime number theorems" (CANCELLED)
Hee Oh, Yale
Monday, April 18 at 3:45 P.M.

Abstract"Inverse Problems in Optical Imaging"
John Schotland, University of Michigan
Monday, May 2 at 3:45 P.M.

Fall 2015 Colloquia

Abstract:  "Who Will save fusion- Harry Potter, Arnold Schwarzenegger, Shaquille O'Neal, or Donald Trump?"
Jeffrey Freidberg, MIT
Monday, October 5 at 3:45 P.M.

Abstract"Graphs, vectors and integers"
Noga Alon, Tel Aviv University and Institute for Advanced Study
Monday, October 19 at 3:45 P.M.

Abstract"From discrete dislocation models to gradient plasticity"
Stefan Mueller, Institute for Applied Mathematics & Hausdorff Center for Mathematics, Bonn
Monday, October 26 at 3:45 P.M.

Abstract"Proximal Processing for Big Data"
Patrick Combettes, Université Pierre et Marie Curie - Paris 6
Monday, November 2 at 3:45 P.M.

Abstract"Coordinate Descent Algorithms" (Joint CS/Math Colloquium)
Stephen J. Wright, U. Wisconsin - Madison
Monday, December 7 at 3:45 P.M.




Spring 2015 Colloquia


Abstract"Some aspects of realization spaces of polytopes"
Karim Adiprasito, IHES and Hebrew U. of Jerusalem
Monday, January 26 at 3:45 P.M.

Abstract"Arithmetic Statistics in Function Fields"
Jon Keating, Bristol
Monday, February 2 at 3:45 P.M.

Abstract"Self-Replication, Exponential Growth, Selection and Competition in Artificial Systems"
Paul Chaikin, NYU

Monday, February 9 at 3:45 P.M.

Abstract"Fibrations in rational surfaces and their sections"
Brendan Hassett, Rice
Monday, February 23 at 3:45 P.M.

Abstract "The porous media equation:  Local and nonlocal"
Luis Caffarelli, UT Austin
Monday, March 2 at 3:45 P.M.

Abstract"Gliders, Bicycles, Toys and Walking Robots"
Andy Ruina, Cornell
Monday, March 9 at 3:45 P.M.

Abstract"Adventures in Urban Informatics"
Steve Koonin, NYU
Monday, March 23 at 3:45 P.M.

Abstract"Enabling small-scale hydraulics through bio-inspired design and active fluids"
Anette Hosoi, MIT
Monday, April 6 at 3:45 P.M.

Abstract"Linear methods for large data"
Dean Foster, University of Pennsylvania
Monday, April 20 at 3:45 P.M.


Abstract:  "Fast Direct Solvers for Elliptic PDEs"
Gunnar Martinsson, UC Boulder
Monday, May 4 at 3:45 P.M.

Abstract"Deep Gaussian Processes"
Neil Lawrence, University of Sheffield
Monday, May 11 at 3:45 P.M.
 

Fall 2014 Colloquia


Abstract"Discrete or Continuous?"
Nick Trefethen, NYU and University of Oxford

Monday, September 15 at 3:45 P.M.

Abstract"Ramanujan graphs and symmetric error correcting codes"
Alex Lubotzky, Hebrew University of Jerusalem
Monday, September 29 at 3:45 P.M.

Title: "The mysterious role of stability in solids with defects"
Gilles Francfort, Université Paris 13 and Institut Universitaire de France
Monday, October 27 at 3:45 P.M.

Abstract"The Surface Subgroup Problem"
Vladimir Markovic, Caltech
Monday, November 3 at 3:45 P.M.

Abstract"The Dynamics of Calcium:  Oscillations and Waves, Experiments and Theory"
James Sneyd, University of Auckland
Monday, November 10 at 3:45 P.M.

Abstract"Infinite Dimensional Superalgebras"
Efim Zelmanov, University of California, San Diego
Special Math Colloquium, Wednesday, November 12 at 11:30 A.M. - 12:30 P.M.
(Tea at 11:00 A.M.)

Abstract:  "Search games and Optimal Kakeya Sets"
Yuval Peres,  Microsoft Research
Monday, November 17 at 3:45 P.M.

Abstract"The Riemann-Hilbert Method"
Alexander Its, IUPUI
Monday, November 24 at 3:45 P.M.

Abstract"Singular Eigenvalue Perturbation Theory"
Barry Simon, Caltech
Monday, December 1 at 3:45 P.M.

Abstract"A new potential-theoretic formulation for Maxwell's equations:  geometry and analysis"
Felipe Vico, Polytechnic University of Valencia
Monday, December 8 at 3:45 P.M.

Spring 2014 Colloquia

Abstract:  "On the Computational and Statistical Interface & 'Big Data"
Michael I. Jordan, University of California, Berkeley
Monday, February 24 at 5:10 P.M.
Cantor Film Center (36 E 8th Street), Room 101

Abstract"Random matrix and partial differential equation"
Horng-Tzer Yau, Harvard University
Monday, March 10 at 3:45 P.M.

Abstract"Taming diverging stochastic PDEs"
Martin Hairer, The University of Warwick
Monday, April 7 at 3:45 P.M.

Abstract"On the geometry of maximum entropy problems"
Michele Pavon, Università di Padova
Monday, April 14 at 3:45 P.M.

Abstract"Numerical Algebraic Intersection with Applications"
Charles Wampler, General Motors and University of Notre Dame
Monday, April 28 at 3:45 P.M.

Abstract"Lax pairs, Hankel operators and transition to high frequencies"
Patrick Gerard, Université Paris-Sud and Institut Universitaire de France
Monday, May 5 at 3:45 P.M.

Abstract"Best approximation by algebraic and semi-algebraic sets"
Shmuel Friedland, University of Illinois at Chicago
Monday, May 12 at 3:45 P.M.

Fall 2013 Colloquia

Abstract:  "Survey on the Farrell-Jones Conjecture"
Wolfgang Luck, Hausdorff Institute for Mathematics
Monday, October 21 at 3:45 P.M.

Abstract"Tales of Our Forefathers"
Barry Simon, Math Dept., Caltech
Monday, October 28 at 3:45 P.M.

Abstract "Random walks on groups and the Kaimanovich-Vershik 1983 conjecture for lamplighter groups"
Yuval Peres, Microsoft Research
Monday, November 4 at 3:45 P.M.

Abstract"Cutting and pasting in algebraic geometry"
Ravi Vakil, Stanford University
Monday, November 11 at 3:45 P.M.

Abstract:  "Droplet Splashing"
Michael Brenner, School of Engineering and Applied Sciences, Harvard University
Monday, November 18 at 3:45 P.M.

Abstract: "Hamiltonian Evolution Equations - Where They Come From, What They Are Good For"
Juerg Froehlich, ETH Zurich (& IAS)
Monday, December 2 at 3:45 P.M.

Abstract"Waves in honeycomb structures"
Charles Fefferman, Princeton University
Monday, December 9, at 3:45 P.M.

Abstract"Introduction to incidence geometry"
Larry Guth, MIT
Monday, December 16, at 4:00 P.M.


Spring 2013 Colloquia

Abstract:
  "Mathematics of Crime"
Andrea Bertozzi, UCLA
(Exceptionally) Tuesday, February 5 at 2:00 P.M.
(Tea preceding at 1:30 P.M.)

Abstract"The Camassa-Holm Equation --- A Survey"
Helge Holden, Norwegian University of Science and Technology, Norway
Monday, February 25 at 3:45 P.M.

Abstract:  "Nearly time-periodic water waves"
Jon Wilkening, UC Berkeley
Monday, March 4 at 3:45 P.M.

Abstract:  "Practical use of information concepts in molecular simulation"
Gabor Csanyi, University of Cambridge
Monday, March 11 at 3:45 P.M.

Abstract:  "Convex recovery from interferometric measurements"
Laurent Demanet, Department of Mathematics, MIT
Monday, March 25 at 3:45 P.M.

Abstract "Burgers equation with random forcing in noncompact setting"
Yuri Bakhtin, Georgia Institute of Technology
Monday, April 1 at 3:45 P.M.

Abstract
"Random Matrices:  The universality phenomenon for non-hermitian random matrices"
Van Vu, Yale
Monday, April 8 at 3:45 P.M.

Abstract"Rationality problems:  a bird's eye view"
Christian Bohning, Universitat Hamburg
Monday, April 15 at 3:45 P.M.

Abstract"Geometric complexity and topological rigidity"
Guoliang Yu, Texas A&M
Monday, April 29 at 3:45 P.M.

Abstract:  "Entropy for sofic group actions"
Lewis Bowen, University of Texas
Monday, May 6 at 3:45 P.M.

Fall 2012 Colloquia

Abstract"Conformal metrics of prescribed Gauss curvature"
Michael Struwe, ETH Zurich
Monday, October 8 at 3:45 P.M.

Abstract"
Integrable Probability"
Ivan Corwin,
Clay Mathematics Institute/MIT, Microsoft Research New England
Monday, October 15 at 3:45 P.M.

Abstract"Schroedinger maps"
Daniel Tataru, University of California Berkeley
Monday, October 22 at 3:45 P.M.

Cancelled:  "TBA"
Dmitry Panchenko, Texas A&M University
Monday, November 5 at 3:45 P.M.

Abstract: "On Dettmann's 'Horizon' conjectures"
Domokos Szasz , Budapest University of Technology
Monday, November 12 at 3:45 P.M.

Abstract:  "The Surface Subgroup Theorem and the Ehrenpreis conjecture"
Jeremy Kahn, Brown University
Monday, November 26 at 3:45 P.M.

Abstract:  "Yang-Mills Fields in super-critical Dimensions"
Tristan Riviere, ETH Zurich
Monday, December 3 at 3:45 P.M.

Abstract"Gaussian Elimination As An Iterative Algorithm"
Lloyd N. Trefethen, Oxford University
Monday, December 10 at 3:45 P.M.



Spring 2012 Colloquia

Abstract:  "Nonequilibrium Thermodynamics for Mathematicians"
Hans Christian Ottinger, ETH Zurich, Department of Materials

Monday, February 6 at 3:45 P.M.

Abstract:  "Geometric Considerations in Harmonic Analysis"
Philip Gressman, UPenn, Mathematics
Monday, March 5 at 3:45 P.M.

Abstract"Spectral Theory of Laplacians on Manifolds, Graphs and Fractals"
Bob Strichartz, Cornell
Monday, March 19 at 3:45 P.M.

"The renormalization group flow"
Weinan E, PACM, Princeton University
Monday, April 2 at 3:45 P.M.

Abstract:  "A constraint-based formulation for freely moving immersed bodies in fluids "
Neelesh Patankar, Department of
Mechanical Engineering, Northwestern University
Monday, April 9 at 3:45 P.M.

Abstract"Arnold diffusion via invariant cylinders and Mather variational method"
Vadim Kaloshin, University of Maryland
Monday,
April 16 at 3:45 P.M.

"Counting critical points of random functions of many variables"
Gerard Ben Arous, Courant Institute of Mathematical Sciences
Monday, April 23 at 3:45 P.M.

Abstract:  "Product Formulas for Measures and Applications to Analysis and Geometry"
Peter Jones, Yale
Monday, April 30 at 3:45 P.M.

"TBA"
Isadore M. Singer, MIT Mathematics, 2004 Abel Prize winner
Monday, May 7 at 3:45 P.M.  (Cancelled)

Fall 2011 Colloquia

"Doing Science in the Open"
Michael Nielsen
Monday, September 19, 2011 at 3:45 P.M.

Abstract:  "Strong and weak epsilon nets and their applications"
Noga Alon, Tel Aviv University and IAS, Princeton
Monday, October 24, 2011 at 3:45 P.M.

Abstract:  "Statistical Mechanics on Sparse Random Graphs:  Mathematics and Applications"
Amir Dembo, Department of Statistics and Department of Mathematics
Stanford University
Monday, November 7, 2011 at 3:45 P.M.

Abstract:  "Scale Bridging Simulations for Soft Matter:  Current status and Conceptual Problems"
Kurt Kremer, Max Planck Institute for Polymer Research, Mainz, Germany
Monday, November 14, 2011 at 3:45 P.M.


Abstract:  "The Kolmogorov-Obukhov Theory of Turbulence"
Bj?n Birnir, Center for Complex and Nonlinear Science and
Department of Mathematics

University of California, Santa Barbara
Monday, November 28, 2011 at 3:45 P.M.


Abstract:  "Vector Diffusion Maps and the Connection Laplacian"
Amit Singer, Princeton University
Monday, December 12, 2011 at 3:45 P.M.



Spring 2011 Colloquia

"New curvature flows"
Gang Tian, Princeton University
Monday, January 31, at 3:45 P.M.

Abstract
"Blow-up global existence for dispersive critical problems"

Frank erle, Universite Cergy-Pontoise & IHES
Monday, February 7, at 3:45 P.M.

"Ill -posed problems"
Charles Epstein, University of Pennsylvania
Monday, February 28, at 3:45 P.M.

Abstract:  "Reformulation of the Covering and Quantizer Problems as Ground States of Interacting Particles"
Salvatore Torquato, Princeton University
Monday, March 7, at 3:45 P.M.
http://cherrypit.princeton.edu/

Abstract: "Commuting Hamiltonians and symplectic topology
"
Claude Viterbo
Monday, March 21 at 3:45 P.M.

Abstract
"Sieving in Orbits"

Alex Kontorovitch, Stony Brook
Monday, March 28 at 3:45 P.M.

Abstract:  "Fermion Monte Carlo"
Malvin Kalos, Lawrence Livermore National Labs
Monday, April 11 at 3:45 P.M.

Abstract:  "The Turn of the Screw:  The History and Optimal Design of an Archimedes Screw"
Chris Rorres, University of Pennsylvania
Monday, April 18 at 3:45 P.M.

The Fritz John Lecture Series: (April 25 and May 2, 2011)
Hans Lindblad
Monday, April 25 at 3:45 P.M.
(Cancelled - rescheduled to October 17)

Abstract:  "Fritz John's ellipsoid and the geometry of high dimensional convex bodies"
Gilles Pisier, Texas A&M University
Monday, May 2 at 3:45 P.M.


Fall 2010 Colloquia

Abstract:  "Symmetries of Aspherical Manifolds"
Professor Shmuel Weinberger, University of Chicago
Monday, September 13, at 3:45 P.M.

http://www.math.uchicago.edu/~shmuel/

Abstract"A two-scale framework to variable selection with NP-dimensionality"
Professor Jianqing Fan, Princeton University
Monday, September 20, at 3:45 P.M.
http://www.princeton.edu/~jqfan

Abstract:  "Bayesian Modeling in Multivariate Time Series:  Structure, Sparsity & Computation"
Mike West
The Arts & Sciences Professor of Statistical Science, Duke University
Monday, October 18, at 3:45 P.M.
http://www.stat.duke.edu/~mw/

Abstract:   "Implicit Particle Filters for Data Assimilation"
Professor Alexandre Chorin, UC Berkeley
Monday, November 8, at 3:45 P.M.

http://math.berkeley.edu/~chorin/

The Fritz John Lecture Series: (November 22 and 29)

"The formation of shocks in three space dimensions"
Demetrios Christodoulou, ETH Zurich
Monday, November 22, at 3:45 P.M.

"Brief history of the vector-field method and the role played
by F. John
"
Sergiu Klainerman, Princeton
Monday, November 29, at 3:15 P.M. (reception to follow)

Abstract:  "Modularity of Galois representations"
Chandrashekhar Khare, UCLA
Monday, December 6, at 3:45 P.M.

Abstract:  "Long Arithmetic progressions in sumsets"
Endre Szemeredi, Hungarian Academy of Sciences
Monday, December 13, at 3:45 P.M.


Spring 2010 Colloquia

Abstract
"Exchangeability and continuum limits of discrete random structures"
Professor David Aldous, U.C. Berkeley
Monday, February 8, at 3:45 P.M.
http://www.stat.berkeley.edu/~aldous
 
Abstract:  "Certified Reduced BasisMethods for Harmonic Wave Problems"
Professor Jan Hesthaven, Brown
Monday, March 1, at 3:45 P.M.
http://www.cfm.brown.edu/people/jansh

Abstract
"Beyond the Elliptic Genus" [joint work with Orlando Alvarez]
I. M. Singer, MIT
Monday, April 19, at 3:45 P.M. (cancelled)

http://math.mit.edu/people/profile.php?pid=249

Title:  "Problems in Mixing"
Katepalli Screenivasan, Sr. Vice Provost and Professor of Physics and Mathematics, NYU
Monday, April 26, at 4:30 P.M.
http://users.ictp.it/~krs/index.html

Abstract"Natural Boundaries and spectral theory"
Professor Barry Simon, Caltech
Monday, May 3, at 3:45 P.M.


Fall 2009 Colloquia

Abstract:  "Towards a calculus for non-linear spectral gaps"
Professor Assaf Naor, Courant Institute of Mathematical Sciences, NYU
Monday, October 5, at 3:45 P.M.
http://cims.nyu.edu/~naor

Abstract:  "Quantum Unique Ergodicity and Number Theory"
Professor Kannan Soundararajan, Stanford
Monday, October 12, at 3:45 P.M.
http://math.stanford.edu/~ksound

Abstract: "Fair Allocations to Random Points"
Professor Ron Peled, Courant Institute of Mathematical Sciences, NYU
Monday, November 2, 2009, at 3:45 P.M.

Abstract:  "Structure of null sets, differentiability of Lipschitz functions, and other problems
in geometric measure theory"
Professor Marianna Csornyei, University College London
Monday, November 9, at 3:45 P.M.

http://www.homepages.ucl.ac.uk/~ucahmcs

Abstract: "Aerodynamic Separation and Invariant Manifolds:  Recent Progress on a
Century-old Problem"
Professor George Haller, McGill
Monday, November 16, at 3:45 P.M.
http://people.mcgill.ca/george.haller

Abstract:  "Universality of Random Matrices and Dyson Brownian Motion"
Professor Horng-Tzer Yau, Harvard

Monday, December 7, at 3:45 P.M.

Spring  2009 Colloquia

"An estimate on weak solutions of the Navier-Stokes equations and some of its consequences"
Walter Craig, McMaster University
Monday, February 2, at 3:45 P.M.

Abstract:  "Quantitative behavior of Lipschitz maps from the Heisenberg group to L^1"
Professor Jeff Cheeger, New York University, Courant Institute of Mathematical Sciences
Monday, February 9, at 3:45 P.M.

 Abstract:  "From Diaconis-Fulton addition to a free boundary problem"
Yuval Peres, Microsoft Research
Monday, March 2, at 3:45 P.M.

Abstract : "Complex Interpolation between Spaces of Bounded Operators"
Professor Gilles Pisier, Université Paris VI and Texas A&M University
Monday, March 30, at 3:45 P.M.

Abstract:   "The second law of probability:  entropy growth in the central limit theorem."
Professor Keith Ball, University College London
Monday, April 13, at 3:45 P.M.

"Inapproximability of NP-complete problems, Discrete Fourier Analysis, and Geometry"
Professor Subhash Khot, New York University, Courant Institute of Mathematical Sciences
Monday, April 27, at 3:45 P.m.

Fall 2008 Colloquia

"An Application of Logic to p-adic Analysis"
David Kazhdan, Hebrew University
Special Mathematics Colloquium
Friday, September 5, at 4:00 P.M., tea at 3:30 P.M.
Location:  Room 109

"Black holes and linear waves"
Igor Rodnianski, Princeton University
Monday, November 3, 3:45 P.M.

Abstract:  "Probabilistic phenomena in the space of contingency tables"
Alexander Barvinok
, University of Michigan at Ann Arbor

Monday, November 17,  at 3:45 P.M.

 Abstract:  "The Sato-Tate Conjecture" 
Richard Taylor, Harvard University
Monday, November 24, at 3:45 P.M.

"Expander graphs:  a playground for combinatorics, algebra and computer science"
Avi Wigderson, The Institute of Advanced Study
Monday, Dec. 1, at 3:45 P.M.

Spring 2008 Colloquia

"Parabolic PDE's and deterministic games"
Professor Robert V. Kohn, Courant Institute, NYU
Monday January 28, at 3:45 P.M.

"Automorphic forms and scattering theory"
Werner Muller, Universitat Bonn/IAS
Monday, February 11, at 3:45 P.M.

 
"Fully Nonlinear Equations with Integral Diffusions"
Luis Caffarelli, University of Texas, Austin
Monday, March 3, at 3:45 P.M.


  "Dirichlet Duality and the Non-linear Dirichlet Problem''
Blaine Lawson, SUNY, Stony Brook
Monday, March 10, 3:45 P.M.

Film screening about Wolfgang Doeblin
Monday, April 14, at 3:45 P.M. in room 109

  "Geometric mechanics: atomic to tectonic"
L. Mahadevan, Harvard University
Monday, May 5, at 3:45 P.M.

Fall 2007 Colloquia

 "On the concept and properties of mass in general relativity"
Professor S-T Yau,  Harvard University
Monday,  October 22, at 3:45 P.M.

"Single and multi-transition solutions for a class of PDE's"

Paul Rabinowitz, University of Wisconsin
Monday, October 29, at 3:45 P.M.


"Learning and Convergence of Beliefs in Social Networks"
Joint Economics-Mathematics Colloquium
Professor Matthew Jackson, Stanford University
Monday, November 12, at 3:45 P.M.

 
"The circular Law"
Professor Van Vu, Rutgers University
Monday, November 26, 2007 at 3:45 P.M.

"Soap Bubble Evolution and Grain Growth in all Dimensions:  beyond von Neumann-Mullins"
Professor David Srolovitz, Yeshiva University
Monday, December 3, 2007 at 3:45 P.M.

Spring 2007 Colloquia

"Random motions in random media"
Alain-Sol Sznitman, ETH Zurich
Monday, March 5 at 3:45 P.M.
 

Courant lectures
Jean-Michel Bismut, Orsay.
Monday, March 26 at 3:30 P.M. in 109

"Two-dimensional polymers (self-avoiding walks) and their
  continuum limit"

Greg Lawler, University of Chicago.
Monday, April 23 at 3:45 P.M.