Last updated: April 23, 2008, 15:52 EST

Northeastern University
Mathematics Department

Maurice Auslander Distinguished Lectures
and International Conference*

April 25 - 27, 2008

Woods Hole, Massachusetts, USA

William Crawley-Boevey

(University of Leeds)

Bill Crawley-Boevey


Date and Time
Location Titles
Friday, Apr. 25,
4:30 - 5:30
Candle HouseMBL
Problems in Linear Algebra Related to
Root Systems
Saturday, Apr. 26,
9:30 - 10:30
Candle HouseMBL
Indecomposable Representations of Quivers

Social Program

Date and Time
Friday, April 25, 5:45 PM - 6:45 PM
Mixer  Swope Conference Center
Private Dining Room (2nd floor)
Friday, April 25, 6:45 PM - 8:00 PM Dinner Swope Dining Hall

For an interactive map of the MBL campus, please click here

Registration for all events is required.

Registration fees

Conference only Conference and Dinner  Dinner Only
Graduate Students Free $5 $34
Postdocs $15 $25 $34
Regular Faculty and Guests $15 $45 $34
Children under 12 N/A N/A $17
Children under 4 N/A N/A Free


A block of rooms has been reserved for the Lectures' guests at the Inn on the Square
in Falmouth. To claim the special rate of $99 per room per night, please call these
numbers before March 25, 2008: +1 888-744-5394 or +1 508-457-0606.

How to get to the hotel

If you are driving, the directions can be found on the hotel's web site.

If you travel by air, there is a direct bus line from the Boston Logan Airport to Falmouth. The bus station in Falmouth is right behind the hotel. For the schedule, please visit Peter Pan Bus Lines (for Origin City choose Boston Logan Airport, for Destination City -- Falmouth). If you let us know your itinerary in advance, we may be able to give you a ride.

Titles and Abstracts

  • Lecture 1.   Problems in Linear Algebra Related to Root Systems
Abstract: The question of classifying differential equations on the Riemann sphere leads one to consider the following problem in linear algebra: given a collection of conjugacy classes of matrices, determine whether or not there are matrices in these classes whose product is the identity. In his book "Rigid Local Systems", N. Katz gave an algorithm for determining whether or not there is a rigid irreducible solution, and wrote that it "leaves one with the impression that there is a fascinating bestiary waiting to be compiled". I shall explain how this and other bestiaries are controlled by root systems for Kac-Moody Lie algebras.

  • Lecture 2.   Indecomposable Representations of Quivers

Abstract: There are famous theorems of P. Gabriel and V. Kac describing the indecomposable representations of quivers in terms of root systems. For example, there is a unique indecomposable representation associated to each "real" root. I shall discuss some of the open problems about these representations, and some small progress. This is based partially on work by my student M. Wiedemann.

Concurrent Activities

International Conference on Representations of Algebras and Related Topics

April 25 - 27, 2008

Woods Hole, Massachusetts, USA

Registered Participants

Frauke Bleher University of Iowa
Justin Brown Northeastern University, Boston, MA
Thomas Brustle University of Sherbrooke, Canada
Elena Budrene-Kac
Michael Butler University of Liverpool, UK
Andrew Carroll Northeastern University, Boston, MA
Lars Christensen Texas Tech, Lubbock, TX
Bill Crawley-Boevey University of Leeds, UK
Yu Fang Brandeis University, Waltham, MA
Sachin Gautam Northeastern University, Boston, MA
Thomas Hudson Northeastern University, Boston, MA
Tony Iarrobino Northeastern University, Boston, MA
Kiyoshi Igusa Brandeis University, Waltham, MA
Osamu Iyama Nagoya University, Japan
Victor Kac MIT
Leila Khatami Northeastern University, Boston, MA
Ryan Kinser University of Michigan, Annihilator Arbor, MI
Mark Kleiner Syracuse University
Daniel Labardini Fragoso Northeastern University, Boston, MA
Shiping Liu University of Sherbrooke, Canada
Zhenbin Luo Brandeis University, Waltham, MA
Marie-Paule Malliavin University of Paris, VII, France
Alex Martsinkovsky Northeastern University, Boston, MA
Mark Mixer Northeastern University, Boston, MA
Mara Neusel Texas Tech, Lubbock, TX
Charles Paquette University of Sherbrooke, Canada
Pierre-Guy Plamondon University of Sherbrooke, Canada
Jason Ribeiro Northeastern University, Boston, MA
Jeremy Russell Northeastern University, Boston, MA
Pedram Safari Harvard University
Franco Saliola UQAM, Canada
Ralf Schiffler University of Massachusetts, Amherst
Janet Striuli University of Nebraska, Lincoln
Alex Suciu Northeastern University, Boston, MA
Kavita Sutar Northeastern University, Boston, MA
Hugh Thomas University of New Brunswick, Canada
Gordana Todorov Northeastern University, Boston, MA
Thao Tran Northeastern University, Boston, MA
Kristin Webster Northeastern University, Boston, MA
Shih-Wei Yang Northeastern University, Boston, MA
Yurong Zhang Brandeis University, Waltham, MA

To register or for further information, contact Alex Martsinkovsky alexmart >at< neu >dot< edu or Gordana Todorov g.todorov >at< neu >dot< edu

Archive: 2007 2006 2005 2004 2003 2002

* Sponsored by Bernice Auslander