**Welcome** to the MSRI Video Archive,
Click on the triangle icons to expand/contract the list.

MSRI: Spring 1999## 1999 Von Neumann Conference Symposium on Arithmetic Fundamental Groups and Noncommutative Algebra

August 16 and 27, 1999

- Small, Introduction to Ring Theory 1
- Harbater, Introduction to Galois Groups and Fundamental Groups
- Matzat, Hilbert's approach and Galois Groups over k(t)
- Small, Introduction to Ring Theory 2
- Saltman, Generic Extensions and the Noether Problem
- Debes, Topological and Analytic Methods in Galois theory
- Fried, Arithmetic and Branched Covers
- Raynaud, Introduction to Moduli of Stable Curves 1
- Small, Introduction to Ring Theory 3
- Raynaud, Introduction to Moduli of Stable Curves 2
- Wewers, Hurwitz Spaces: the Moduli of Covers
- Fried, Braid Rigidity and Hurwitz Spaces
- Zelmanov, Combinatorial Ring Theory and Lie Algebras 1
- Elkies, Other Applications of Branched Coverings
- Stevenson, Topological Fundamental Groups
- Zelmanov, Combinatorial Ring Theory and Lie Algebras 2
- Haran, Profinite Groups 1
- Lenstra, Etale Fundamental Groups 1
- Stafford, Noncommutative Algebraic Geometry 1
- Saidi, Rigid and Formal Geometry
- Montgomery, Hopf Algebras 1
- Pop, Etale Fundamental Groups 2
- Stafford, Noncommutative Algebraic Geometry 2
- Zelmanov, Combinatorial Ring Theory and Lie Algebras 3
- Ihara (1.5 hours), Galois action on the projective line minus three points and noncommutative power series
- Schneps, The Grothendieck-Teichmuller group and fundamental groups of moduli spaces
- Montgomery, Hopf Algebras 2
- Szamuely, Introduction to anabelian geometry
- Mestre, Profinite Groups 2
- Stafford, Noncommutative Algebraic Geometry 3
- Harbater, Abhyankar's Conjecture
- Montgomery, Hopf Algebras 3
- Research Seminar, Schneps, Grothendieck-Teichmuller group and Hopf algebras
- Mazat, Rigidity and Embedding Problems
- Fried, Cyclic cohomology and the Hurwitz modular tower
## Constructive Galois Theory workshop

October 4-8, 1999

- S.S. Abhyankar Desingularization and modular Galois descent
- G. Malle Explicit Galois realizations
- D. Haran Algebraic patching
- G. Frey Geometric realization of Galois groups and diophantine Problems
- H. Lenstra Exceptional covers
- K. Magaard Groups of bounded genus
- R. Guralnick Branched Covers of Curves by Curves of Fixed Genus
- P. Mueller Co-finite Hilbert Sets
- K. Stevenson Formal patching and covers of curves
- J.-L. Colliot-ThËlËne Rational connectedness and Galois covers of the projective line
- D. Harbater Embedding problems with local conditions
- M. Matignon Automorphisms of p-adic formal discs
- G. Frey Algebraic curves with infinite rational fundamental groups
- H. Voelklein A transformation principle for covers of P^1
- M. Fried Cusps attached to noncongruence covers of the j-line and the Inverse Galois Problem
- M. Jarden Non PAC fields
- H. Matzat Constructive Differential Galois Theory
- J. Koenigsmann Transferring absolute Galois groups from characteristic 0 to characteristic p
- D. Saltman Trying to use H^3 in Noether's problem
## Galois Actions and Geometry Workshop

October 11-15, 1999

- P. DËbes "Fields of definition and families of covers"
- F. Pop "Birational anabelian geometry over algebraically closed base fields"
- A. Tamagawa "Fundamental groups and geometry in positive characteristic"
- L. Zapponi "Flowers, trees and cells"
- M. Raynaud "Reduction mod.p of Galois covers of the projective line minus 3 points"
- I. Efrat "Reconstruction of fields from absolute Galois groups"
- M. SaÔdi "On the specialization homomorphism of fundamental groups of curves in positive characteristic"
- K. Ribet "Almost rational torsion points on abelian varieties"
- H. Darmon "Constructing rational points on elliptic curves: beyond complex multiplication?"
- E. Kani "p-adic representations of the K-rational geometric fundamental group of a curve over a number field"
- R. Hain "Weighted completion of arithmetic fundamental groups"
- M. Matsumoto "Weighted completion of Galois groups and the Deligne-Ihara conjecture"
- S. Mochizuki "The Hodge-Arakelov theory of elliptic curves"
- E. Black "Generic Galois extensions and related questions"
- E. Bayer "Galois cohomology of the classical groups"
- M. Fried "Sequences of j-line covers and theta-characteristics"
- H. Nakamura "Some aspects of Galois-Teichm[cedilla]ller modular groups of small type"
## Hopf Algebras Workshop

October 25 - 29, 1999

- Nicolai Reshetikhin Factorizable Hopf algebras and quantum integrable systems
- David Radford Quantum coalgebras, 1-1 tangle and knot invariants
- Yevgenia Kashina Semisimple Hopf algebras of dimension 2
^{n }- Sonia Natale Semisimple Hopf algebras of dimension pq
^{2 }- Yorck Sommerh[per thou]user On central character rings
- Mitsuhiro Takeuchi Cylinder braidings, cylinder algebras, and cylinder matrices
- Marc Rosso Lyndon words and Universal R-matrices
- Nicols Andruskiewitsch Finite quantum groups of Cartan type
- Margaret Beattie Twistings of Hopf Galois Extensions
- Ed Green The Hopf Project: A computer package to study algebras and Hopf algebras
- Serban Raianu Hopf modules and Galois extensions
- Yinhuo Zhang An exact sequence of the Brauer group of a finite quantum group
- Yongchang Zhu Hecke algebras and representation rings of Hopf algebras
- Yukio Doi BiFrobenius algebras
- Shlomo Gelaki The Classification of Triangular Hopf Algebras
- Dmitri Nikshych Quantum groupoids and symmetries of von Neumann algebras
- Claudia Menini Connections, Symmetry Operators and Descent Data for Triples
- Claude Cibils Hopf quivers
- Gail Letzter Coideal Subalgebras and Quantum Symmetric Pairs
- Dragos Stefan Descent theory and Amitsur cohomology of adjoint functors
- Akira Masuoka Examples of Galois Objects and Cocycle Deformations
- Davida Fischman On Yetter-Drinfel'd categories and H-commutativity
- Shenglin Zhu Separable functors for Doi-Hopf modules
- William Chin Almost Split Sequences for Comodules
- Sorin Dascalescu Co-Frobenius Hopf algebras
- Earl Taft The topological bialgebra of polynomially recursive sequences
- Richard G. Larson Applications of bialgebras to finite automata, control theory, and data mining
- Peter Schauenburg A quantum Kac sequence
- Sarah Witherspoon A Hopf structure on Down-up algebras
- Matias GraÒa Examples of Nichols algebras over non-abelian groups
- Stefaan Caenepeel Separable algebras, Frobenius algebras, and solutions of the FS-equation
## Mathematics in Imaging Workshop

November 1-5, 1999

- Carlos Berenstein, Radon transform and wavelets
- James G. Berryman, Underground Imaging of Electrically Conducting Contaminant Plumes
- Liliana Borcea, Imaging high contrast conductive and dielectric media with low frequency electromagnetic fields
- Thomas F. Budinger, Biomedical Imaging: Instrumentation and Mathematical Challenges
- Emmanuel J. Candes and David L. Donoho, Curvelets
- Tony F Chan and H.M. Zhou, Adaptive ENO-wavelets for discontinous functions with applications to image compression
- Margaret Cheney, Acoustic Distinguishability In The Half-Space Geometry
- David Colton, Inverse Acoustic Scattering Theory
- O. Dorn, A Nonlinear Inversion Method for 3D-Electromagnetic Induction Tomography Using Adjoint Fields
- Herbert A. Hauptman, The Phase Problem Of X-Ray Crystallography
- Gabor T. Herman, Tomography in Electron Microscopy
- Frank Natterer, The Kaczmarz method in nonlinear imaging.
- Clifford Nolan, High--frequency inversion and imaging in anisotropic materials
- Stanley Osher, Fast Algorithms for Etching, Image Restoration and Surface Interpolation
- George Papanicolaou, Super-resolution in time-reversal imaging
- Sarah K. Patch, John's Equation Improves 3D Computed Tomography
- Larry Shepp, An Application of Prolate Spheroidal Wave Functions to Fast Functional Magnetic Resonance Imaging.
- Wm. J. Welch,
- Jorge P. Zubelli, Imaging the Interior of Objects that Scatter and Diffuse Radiation
## The Future of Mathematical Communication: 1999

December 1-5, 1999

- David Hoffmann Setting Up and Maintaining Streaming Video
- Patrick Ion Lessons from the past of Mathematical Communication
- June Lester Communicating with Interactivity
- Rob Corless Software Tools for Mathematical Communication
- Howard Ratner Reference Linking Using DOI
- Robby Robson Metadata for Mathematical Resources: Show and Tell
- Eberhard Hilf Professional Home Pages of Institutions and Scientists - New Add-on Services for Learned Societies
- Alexei Zhizhchenko Integrated System of Information Resources of RAS
- Zsuzsa Koltay Project Euclid
- Martin Groetschel MathNet: A Model for the Future Role of the Mathematical Community in Information and Communication?
- Loki Jorgenson Prospects for Open Source Scholarly Publishing
- Jim Crowley SIAM projects
- Bernd Wegner Projects in Electronic Information and Electronic Publication supervised by EMS
- John Ewing Predicting (and Protecting) the Future
- Robert Miner The Surprising Success of MathML
- Ursula Martin The role of computational logic in mathematical communication
- Konrad Polthier Online Experiments and Visualization with JavaView
- Ulli Kortenkamp Communicating Interactive Geometry
- Paul Wang Internet Accessible Mathematical Computation: A Progress Report
- Jeremy Gunawardena WebSeminars
- Mark Steinberger Journal Quality
- Andre Kuzniarek Mathematical communications initiatives from Wolfram Research
- Mike Doob The Mathematician-Publisher interface: the recent past, the near future, and the potholes in the road.
- Olga Caprotti OpenMath: Accessing and Using Mathematical Information Electronically
- James Davenport Electronic Publishing and OpenMath, and what to do about LaTex
- Nathalie Sinclair Survival of the Fit: Communicating with our future mathematicians
- Thorsten Bahne, Gunter Torner Changing the Representation medium - Changing the Standards?
- Dave Morrison Future uses of the mathematics arXiv
- Rob Kirby Competing with the commercial journals
- Ulf Rehmann DOCUMENTA MATHEMATICA: Efficient Production of Mathematical Literature
- Bill Casselman A survey of mathematical exposition in Java
- Carol Hutchins GNU Librarians and Messyware
- Andrew Odlyzko The rapid evolution of scholarly communication
- Phil Agre Rethinking the Institutions of Research
## Modularity of Elliptic Curves and Beyond

December 6-10, 1999

- Richard Taylor On the modularity of rational elliptic curves I: the general strategy
- Kevin Buzzard Weight 1 modular forms and a conjecture of Artin
- Chris Skinner Modular Forms and Residually Reducible Representations I
- Henri Darmon Diophantine applications of the modularity conjecture: rigid coverings, modular forms, and the generalized Fermat equation
- Mark Dickinson On the modularity of certain 2-adic Galois representations
- Christophe Breuil On the modularity of rational elliptic curves II: filtered phi_1 modules
- Jean-Marc Fontaine Semi-Stable Galois Representations I
- Chris Skinner Modular Forms and Residually Reducible Representations II
- Nick Shepherd-Barron Finding abelian varieties
- Matthias Flach On the Bloch-Kato conjectures
- Fernando Villegas Integral elements of K_2 of an elliptic curve
- Chris Skinner Modular Forms and Residually Reducible Representations III
- Jordan Ellenberg Modularity of Q-curves
- Pierre Colmez Semi-Stable Galois Representations II
- Fred Diamond On the modularity of rational elliptic curves III: global arguments
- Kazuhiro Fujiwara An approach to a non-abelian class field theory for cyclotomic towers
- Ken Ribet Serre's conjectures mod 2
- Brian Conrad On the modularity of rational elliptic curves IV: local arguments
- Pierre Colmez Semi-Stable Galois Representations III
- Henri Darmon Complex multiplication and beyond? Uniformisation of elliptic curves by HpxH/SL2(Z[1/p])
- Jean-Marc Fontaine Geometric Galois Representations, motives and modular forms
## Non-Workshop Lectures

## Elwyn Berlekamp

Dots and Boxes and Related Mathematical Games

Lectures from Other Organizations: 2002 - 2003

Lectures from Other Organizations: 2000 - 2001

Lectures from Other Organizations: 1998 - 1999

Lectures from Other Organizations: 1996 - 97

Lectures for the General Public