University of Helsinki Lars Ahlfors Centennial Celebration
Department of Mathematics and Statistics
Faculty of Science
  
Photos Recorded lectures Ahlfors 100 Patron Plenary speakers Invited speakers Program Titles and abstracts Location and transports List of participants Accommodation Social program Registration Sponsors Organizing committee Related events Poster

Lars Ahlfors Centennial Celebration

The lectures (except the lecture on the life of Lars Ahlfors) take place at the Exactum building in the Kumpula Campus (Auditoriums A111, B123, and CK112). Street address: Gustaf Hällströmin katu 2b.

Program

Monday, August 20, 2007

9:00-10:00Registration
10:00A111Opening of the Conference
10:15-11:15 A111Lennart CarlesonA Symphony in Geometric Function Theory
--- Coffee break ---
11:45-12:35 A111Wendelin WernerExploring near-critical percolation
--- Lunch break ---
Parallel lectures
14:00-14:45A111Ursula Hamenstädt Invariant Radon measures on measured foliation space
14:00-14:45B123Lassi PäivärintaInvisibility challenges inverse problems
14:00-14:45CK112Joan VerderaControlling the maximal singular integral by the singular integral
--- Coffee break ---
Parallel lectures
15:15-16:00A111Mikhail Sodin Random Complex Zeroes
15:15-16:00B123Bernd Kirchheim The gradient range of planar Lipschitz maps
15:15-16:00CK112Bryna Kra Nilsystems in ergodic theory and additive combinatorics
Parallel lectures
16:15-17:00A111Alexander Volberg Analytic and combinatorial properties of 4^n Cantor squares
16:15-17:00B123Jang-Mei Wu Quasisymmetric non-parametrizability of product spaces associated with the Whitehead continuum
16:15-17:00CK112Danny Calegari Positivity of the universal pairing in 3 dimensions, and the topological Cauchy-Schwarz inequality
19:00-20:30Reception at The City Hall Address: Pohjoisesplanadi 11-13

Tuesday, August 21, 2007

9:00-9.50A111Bruce Kleiner Bi-Lipschitz embedding in Banach spaces
--- Coffee break ---
10:20-11:10 A111Sun-Yung Alice Chang Q-curvature in Conformal Geometry
11:25-12:15 A111Gunther Uhlmann Visibility and Invisibility
--- Lunch break ---
Parallel lectures
13:45-14:30A111Stanislav Smirnov Discrete complex analysis and 2D Ising model
13:45-14:30B123Vladimir Markovic The Teichmüller distance between subgroups of PSL(2,Z)
13:45-14:30CK112Jani Onninen An invitation to n-harmonic hyperelasticity
--- Coffee break ---
Parallel lectures
15:00-15:45A111Michel Zinsmeister Ahlfors-regular curves
15:00-15:45B123Zoltán BaloghSub-Riemannian vs. Euclidean dimension comparison and fractal geometry on Carnot groups
15:00-15:45CK112Leonid KovalevFrom the Beurling-Ahlfors extension to the geometry of Banach spaces
16:00-16:45A111Rodrigo Bañuelos Martingales and L^p-estimates for the Beurling-Ahlfors operator and Lévy multipliers
16:00-16:45B123Mario Bonk Postcritically-finite maps on the sphere
16:00-16:45CK112Xiao Zhong The Poincaré inequality is an open ended condition
18:00-19:00Public lecture by Academician Olli Lehto Life of Lars Ahlfors
Location: Juhlasali, Main building of the University
Address: Aleksanterinkatu 5
19:00-21:00 Reception of the University of Helsinki

Wednesday, August 22, 2007

9:00-9.50A111Curtis McMullen Thermodynamics, dimension and the Weil-Petersson metric
--- Coffee break ---
10:20-11:10 A111David Preiss Behaviour of Lipschitz functions on negligible sets
11:25-12:15 A111Dennis Sullivan A pattern in algebra and geometry illustrated by all the moduli spaces of finite type Riemann surfaces taken together
--- Lunch break ---
14:00-Excursions

Thursday, August 23, 2007

9:00-9.50A111Jeff Cheeger Generalized Differentiation and Bi-Lipschitz Non-embedding
--- Coffee break ---
10:20-11:10 A111Peter Jones Laplacian Eigenfunctions and Local Coordinate Systems
11:25-12:15 A111Jill Pipher Multiparameter Fourier Analysis: Singular integrals, commutators, and bilinear operators
--- Lunch break ---
Parallel lectures
13:45-14:30A111Luigi Ambrosio Existence and stability results of Fokker-Planck equations and Markov processes associated to log-concave measures
13:45-14:30B123Aimo Hinkkanen On the norm of the Beurling-Ahlfors transformation
13:45-14:30CK112Kevin CostelloRenormalisation of certain quantum field theories
--- Coffee break---
Parallel lectures
15:00-15:45A111Tadeusz Iwaniec Estimates of the Jacobian determinant in terms of subdeterminants; where Hardy & Littlewood unite with Fefferman & Stein in maximal inequalities
15:00-15:45B123Tatiana Toro On Wolff Snowflakes
15:00-15:45CK112Benson Farb Teichmüller geometry of moduli space
16:00-16:45A111Gaven Martin Curvature and Dynamics
16:00-16:45B123Håkan Hedenmalm Grunsky inequalities and beyond
16:00-16:45CK112
Contributed talks
17:00-17:20A111Mark Melnikov Uniqueness theorems for Cauchy integrals
17:00-17:20B123David Herron Euclidean Quasiconvexity
17:00-17:20CK112Saminathan Ponnusamy Univalency and Integral Transforms

Friday, August 24, 2007

9:00-9.50A111Guy David Low regularity for almost minimal sets and potential existence results
--- Coffee break ---
10:20-11:10 A111 Yum-Tong Siu Multiplier ideal sheaves and their applications to analysis and algebraic geometry
11:25-12:15 A111Xavier Tolsa The Painlevé problem, analytic capacity, and quasiconformal mappings
--- Lunch break ---
Parallel lectures
13:45-14:30A111John Lewis On the Dimension of p-Harmonic Measure and Related Topics
13:45-14:30B123Marianna CsörnyeiStructure of null sets in Euclidean spaces: some results and open problems
13:45-14:30CK112Walter Bergweiler Zeros of derivatives of real entire functions
--- Coffee break ---
Parallel lectures
15:00-15:45A111Eero Saksman Quasiconformal flows, bi-Lipschitz embeddings, and Q-curvature
15:00-15:45B123Teruhiko Soma Ahlfors' measure problem for geometric limit Kleinian groups
15:00-15:45CK112Maarit Järvenpää Porosity in Euclidean and metric measure spaces
19:00- Conference Dinner