umn logo IMA home |  Contact IMA 
IMA Web

IMA Annual Program Year Workshop

Complexity, Coding, and Communications

April 16-20, 2007
Organizers:
Peter Bürgisser Mathematik - Informatik, Universität Paderborn
Ketan Mulmuley Computer Science, University of Chicago
J. Maurice Rojas Mathematics, Texas A & M University
Joachim Rosenthal Mathematics, University of Zurich
Madhu Sudan Electrical Engineering & Computer Science, Massachusetts Institute of Technology

Schedule Participants Program Application Feedback
IMA Live Streaming and Webcasting Maps
Abstracts and Talk Materials Dining Guide
Photo Gallery

Description:

Algebraic Geometry is by now well known to have fundamental applications to the theory of error-correcting codes and computational complexity. The connection to computational complexity dates back to the seminal works of A. Schönhage and V. Strassen in the 1960s, where they established fundamental links between notions and results in algebraic geometry with the complexity of computing algebraic functions. In the theory of error-correcting codes, the first significant links were established by V. D. Goppa, leading to the remarkable constructions due to Tsfasman, Vladuts and Zink of codes based on modular curves.

Such connections between algebraic geometry, computational complexity and coding theory have continued to be a rich source of inspiration for new results in coding and complexity theory through the decades, with major breakthroughs in computational complexity (cf. Mulmuley, SIAM J. Computing 1999), simpler constructions of error-correcting codes, as well as simpler decoding algorithms emerging from this connection. Furthermore, the two connections are being further intensified by a new generation of researchers working in the nexus of all three areas, The aim of this workshop is to enable further interaction and research along these lines.

Schedule
Monday, April 16
8:15a-9:00a Registration and coffee   EE/CS 3-176
9:00a-9:15a Welcome and introduction Douglas N. Arnold (University of Minnesota) EE/CS 3-180
9:15a-10:05a On the number of homotopy types of fibres of a definable map Saugata Basu (Georgia Institute of Technology) EE/CS 3-180
10:05a-10:40a Coffee   EE/CS 3-176
10:40a-11:30a List decoding with optimal data rate Venkat Guruswami (University of Washington) EE/CS 3-180
11:30a-1:30a Lunch    
1:30p-2:20p Pseudocodeword connections Judy L. Walker (University of Nebraska) EE/CS 3-180
2:20p-3:00p Coffee   EE/CS 3-176
3:00p-3:30p Second Chances and Open Problem Session   EE/CS 3-180
3:40p-4:00p Group Photos   EE/CS 3-180
4:00p-6:00p Reception and Poster Session
Lind Hall 400
Decoding linear codes via solving systems of polynomial equations Stanislav Bulygin (TU Kaiserslautern)
List decoding BCH codes Philip Robert Busse (University of Kentucky)
A complexity-reduced interpolation algorithm for soft-decision decoding of Reed-Solomon codes Kwankyu Lee (Korea Institute for Advanced Study (KIAS))
NP, coNP and the Nullstellensatz: lower bounds for stable set and graph coloring Nullstellensatze Susan Margulies (University of California)
The word problem for a class of groups with infinite presentation: A mputationally universal problem in the BSS model Klaus Meer (Syddansk Universitet (University of Southern Denmark))
Descartes rule for complete fields and arbitrary codimension J. Maurice Rojas (Texas A & M University)
Metric structure of linear codes Diego Ruano (Universität Kaiserslautern)
Nonextendibility of mutually unbiased bases Meera Sitharam (University of Florida)
New fewnomial upper bounds Frank Sottile (Texas A & M University)
Computing zeta functions of sparse, nondegenerate hypersurfaces John Voight (University of Minnesota Twin Cities)
Tuesday, April 17
8:30a-9:00a Coffee   EE/CS 3-176
9:00a-9:50a The tangent FFT Daniel J. Bernstein (University of Illinois) EE/CS 3-180
9:50a-10:30a Coffee   EE/CS 3-176
10:30a-11:20a On Smale's 17th problem: a probabilistic solution in average polynomial time Luis Miguel Pardo (University of Cantabria) EE/CS 3-180
11:20a-1:30p Lunch    
1:30p-2:20p Polynomial time algorithms to approximate mixed volumes within a simply exponential factor Leonid Gurvits (Los Alamos National Laboratory) EE/CS 3-180
2:20p-3:00p Coffee   EE/CS 3-176
3:00p-3:30p Second Chances and Open Problem Session   EE/CS 3-180
Wednesday, April 18
8:30a-9:00a Coffee   EE/CS 3-176
9:00a-9:50a Strongly self-orthogonal codes for secure computation Iwan Duursma (University of Illinois at Urbana-Champaign) EE/CS 3-180
9:50a-10:30a Coffee   EE/CS 3-176
10:30a-11:20a Geometry and the complexity of matrix multiplication Joseph M. Landsberg (Texas A & M University) EE/CS 3-180
11:20a-1:30p Lunch    
1:30p-2:20p New recombination techniques for polynomial factorization algorithms based on Hensel lifting Grégoire Lecerf (Université Versailles/Saint Quentin-en-Yvelines) EE/CS 3-180
2:20p-3:00p Coffee   EE/CS 3-176
3:00p-3:30p Second Chances and Open Problem Session   EE/CS 3-180
5:00p-6:30p Reception   Lind Hall 400
7:00p-8:00p Math matters - IMA public lecture: Epidemics in technological and social networks: The downside of six degrees of separation Jennifer Chayes (Microsoft Research) Willey Hall 125  
Thursday, April 19
8:30a-9:00a Coffee   EE/CS 3-176
9:00a-9:50a Ubiquity of Schubert varieties V. Lakshmibai (Northeastern University) EE/CS 3-180
9:50a-10:30a Coffee   EE/CS 3-176
10:30a-11:20a Decision versus evaluation in algebraic complexity theory Pascal Koiran (École Normale Supérieure de Lyon) EE/CS 3-180
11:30a-1:30a Lunch    
1:30p-2:20p The weight adjacency matrix of a convolutional code Heide Gluesing-Luerssen (University of Kentucky) EE/CS 3-180
2:20p-3:00p Coffee   EE/CS 3-176
3:00p-3:30p Second Chances and Open Problem Session   EE/CS 3-180
6:30p-8:30p Group Dinner- Kikugawa at Riverplace   43 Main Street SE Minneapolis MN 55414 
Friday, April 20
8:30a-9:00a Coffee   EE/CS 3-176
9:00a-9:50a Geometric complexity theory (GCT) Milind Sohoni (Indian Institute of Technology) EE/CS 3-180
9:50a-10:30a Coffee   EE/CS 3-176
10:30a-11:20a The probability that a slight perturbation of a numerical analysis problem is difficult Peter Bürgisser (Universität Paderborn) EE/CS 3-180
11:20a-1:30p lunch    
1:30p-2:20p A critical radius for low complexity J. Maurice Rojas (Texas A & M University) EE/CS 3-180
2:30p-3:00p Second Chances and Closing Remarks   EE/CS 3-180

LIST OF CONFIRMED PARTICIPANTS

Name Department Affiliation
Eric Allender Department of Computer Science Rutgers University
Douglas N. Arnold Institute for Mathematics and its Applications University of Minnesota Twin Cities
Donald G. Aronson Institute for Mathematics and its Applications University of Minnesota Twin Cities
Saugata Basu School of Mathematics Georgia Institute of Technology
Daniel J. Bates Institute for Mathematics and its Applications University of Minnesota Twin Cities
Daniel J. Bernstein Department of Mathematics, Statistics and Computer Science University of Illinois
Víctor Blanco Izquierdo Department of Statistics and Operational Research University of Sevilla
Markus Bläser FR Informatik Universität des Saarlandes
Stanislav Bulygin   TU Kaiserslautern
Peter Bürgisser Institute of Mathematics Universität-GHS Paderborn
Philip Robert Busse Department of Mathematics University of Kentucky
Eimear Byrne Discipline of Mathmatics, School of Mathmatical Science University College Dublin
Ionut Ciocan-Fontanine Institute for Mathematics and its Applications University of Minnesota Twin Cities
Aaron Cohen Electrical Engineering Department University of Minnesota Twin Cities
Gerard Cohen Network and Computer Science Department École Nationale Supérieure de Télécommunications (ENST)
Ruchira Datta Department of Mathematics University of California
Rafael Del Valle-Vega Math Department University of Puerto Rico
Giovanni Di Crescenzo   Telcordia
Sandra Di Rocco Department of Mathematics Royal Institute of Technology (KTH)
Kenneth R. Driessel Department of Mathematics Iowa State University
Iwan Duursma Department of Mathematics University of Illinois at Urbana-Champaign
Jinwoo Eo   University of Minnesota Twin Cities
Makan Fardad Department of Electrical and Computer Engineering University of Minnesota Twin Cities
Jeffrey Farr   Department of Defense
Ignacio Fernandez Rua Department of Mathematics University of Oviedo
Andrei Gabrielov Department of Mathematics Purdue University
Jayantha Gan Hewage Department of Mathematics and Statistics Oakland University
Hans Olav Geil Department of Mathematical Sciences Aalborg University
Tryphon T. Georgiou Department of Electrical Engineering University of Minnesota Twin Cities
Marc Giusti Laboratoire d' Iaformatique École Polytechnique
Heide Gluesing-Luerssen Department of Mathematics University of Kentucky
Leah Gold Department of Mathematics Cleveland State University
Elisa Gorla Institut für Mathematik Universität Zürich
Jason E. Gower Institute for Mathematics and its Applications University of Minnesota Twin Cities
Venkat Guruswami Department of Computer Science and Engineering University of Washington
Leonid Gurvits Quantum Institute Los Alamos National Laboratory
Milena Hering Institute for Mathematics and its Applications University of Minnesota Twin Cities
Patricia Hersh Department of Mathematics Indiana University
Tom Hoeholdt Department of Mathematics Technical University of Denmark
Benjamin J. Howard Institute for Mathematics and its Applications University of Minnesota Twin Cities
Evelyne Hubert Project CAFE Institut National de Recherche en Informatique Automatique (INRIA)
Carmelo Interlando Department of Mathematics and Statistics San Diego State University
Farhad Jafari Department of Mathematics University of Wyoming
Heeralal Janwa Math Department University of Puerto Rico
Anders Nedergaard Jensen Institut for Matematiske Fag Aarhus University
Gabriela Jeronimo Departamento de Matematica - FCEyN University of Buenos Aires
David Joyner Department of Mathematics U.S. Naval Academy
Steve Kaliszewski Department of Mathematics and Statistics Arizona State University
Mordechai Katzman Department of Pure Mathematics University of Sheffield
Christine A Kelley Department of Mathematics Ohio State University
Michael Kerber   Universität Kaiserslautern
Michael Kettner School of Mathematics Georgia Institute of Technology
Pascal Koiran   École Normale Supérieure de Lyon
Teresa Krick Departamento de Matematica - FCEyN University of Buenos Aires
Song-Hwa Kwon Institute for Mathematics and its Applications University of Minnesota Twin Cities
V. Lakshmibai Department of Mathematics Northeastern University
Joseph M. Landsberg Department of Mathematics Texas A & M University
Tanja Lange Department of Mathematics and Computer Science Technische Universiteit Eindhoven
Niels Lauritzen Institut for Matematiske Fag Aarhus University
Grégoire Lecerf Laboratoire de Mathematiques Université Versailles/Saint Quentin-en-Yvelines
Kwankyu Lee School of Computational Sciences Korea Institute for Advanced Study (KIAS)
Anton Leykin Institute for Mathematics and its Applications University of Minnesota Twin Cities
Hstau Y Liao Institute for Mathematics and its Applications University of Minnesota Twin Cities
Sergio Lopez-Permouth Department of Mathematics Ohio University
Gennady Lyubeznik School of Mathematics University of Minnesota Twin Cities
Gregorio Malajovich Departamento de Matematica Aplicada Federal University of Rio de Janeiro
Susan Margulies Department of Computer Science University of California
Hannah Markwig Institute for Mathematics and its Applications University of Minnesota Twin Cities
Thomas Markwig Department of Mathematics Universität Kaiserslautern
Klaus Meer Department of Mathematics and Computer Science Syddansk Universitet (University of Southern Denmark)
Abigail Mitchell Department of Mathematics University of Notre Dame
Richard B. Moeckel School of Mathematics University of Minnesota Twin Cities
Jason Morton Department of Mathematics University of California
Uwe Nagel Department of Mathematics University of Kentucky
Jiawang Nie Institute of Mathematics and its Applications University of Minnesota Twin Cities
Andrew M. Odlyzko Digital Technology Center University of Minnesota Twin Cities
Luke Oeding Department of Mathematics Texas A & M University
Michael E. O'Sullivan Department of Mathematics and Statistics San Diego State University
Roger Oyono Department of Combinatorics and Optimization University of Waterloo
Luis Miguel Pardo Department of Mathematics University of Cantabria
Fernando Piñero Department of Mathematics University of Puerto Rico
Nikki Pitcher Department of Mathematics, Statistics and Computer Science University of Illinois
Vera S. Pless Department of Mathematics, Statistics and Computer Science University of Illinois
Bjorn Poonen Department of Mathematics University of California
Victor Reiner School of Mathematics University of Minnesota Twin Cities
Joel Roberts School of Mathematics University of Minnesota Twin Cities
Marie Rognes   University of Oslo
J. Maurice Rojas Department of Mathematics Texas A & M University
Joachim Rosenthal Department of Mathematics Universität Zürich
Bjarke Hammersholt Roune Department of Mathematics Aarhus University
Diego Ruano Fachbereich Mathematik Universität Kaiserslautern
Vishal Saraswat School of Mathematics University of Minnesota Twin Cities
Arnd Scheel Institute for Mathematics and its Applications University of Minnesota Twin Cities
Renate Scheidler Department of Mathematics and Statistics University of Calgary
Chehrzad Shakiban Institute of Mathematics and its Applications University of Minnesota Twin Cities
Amir Shpilka Department of Computer Science Technion-Israel Institute of Technology
Meera Sitharam Department of Computer Science University of Florida
Roxana Smarandache Department of Mathematics and Statistics San Diego State University
Milind Sohoni Department of Computer Science and Engineering Indian Institute of Technology
Martin Sombra Departament d'Algebra i Geometria University of Barcelona
Frank Sottile Department of Mathematics Texas A & M University
Steven Sperber School of Mathematics University of Minnesota Twin Cities
Dumitru Stamate School of Mathematics University of Minnesota Twin Cities
Ileana Streinu Department of Computer Science Smith College
Bernd Sturmfels Department of Mathematics University of California
Madhu Sudan Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology
Carl Toews Institute for Mathematics and its Applications University of Minnesota Twin Cities
John Voight Institute for Mathematics and its Applications University of Minnesota Twin Cities
Pascal Olivier Vontobel Information Theory Research Group Hewlett-Packard Laboratories
Joachim von zur Gathen Bonn-Aachen International Center for Information Technology Rheinische Friedrich-Wilhelms-Universität Bonn
Nicolai Vorobjov Department of Computer Science University of Bath
Judy L. Walker Department of Mathematics University of Nebraska
Fei Yang Department of Biomedical Engineering University of Minnesota Twin Cities
Josephine Yu Department of Mathematics University of California