David B. Mumford is Professor of Applied Mathematics at Brown University. He is a Field Medalist and has received many other honors such as an honorary D.Sc. from the University of Warwick, membership in the National Academy of Sciences, and election to President of the International Mathematical Union. David Mumford was awarded a Fields medal in 1974 for his work in algebraic geometry. Subsequently, the direction of his work shifted from algebraic geometry to areas of applied mathematics including machine and natural intelligence. Professor Mumford will be giving the AMS Josiah Willard Gibbs Lecture.

Paul J. Sally, Jr. is Professor of Mathematics and the Director of Undergraduate Studies in Mathematics at the University of Chicago. He has received many prestigious honors, including the University of Chicago Quantrell Award for Excellence in Undergraduate Teaching, the Amoco Award Foundation Award for Long-term Excellence in Undergraduate Teaching, the 2002 Haimo Award, presented by the MAA, for his commitment to the cause of education and excellence at all levels, and the 2000 Award for Distinguished Service, presented by the AMS, for his service to the Society as Trustee and for his many efforts in improvement of mathematics education for the nation's youth and especially for members of minority and underrepresented groups. Paul Sally founded the University of Chicago School Mathematics Project, a leading education reform effort, and co-founded the Young Scholars Program for mathematically talented students. Professor Sally will be giving an MAA Invited Address.

Peter Sarnak is Professor of Mathematics at Princeton University. He has received many prestigious honors including election to the American Academy of Arts and Sciences, the honor of being co-recipient of SIAM's Polya Prize for his work on the discrete spectrum of the Laplacian on curves, a NSF Sloan Fellowship, and the Ostrowksi Prize for outstanding contributions in the field of mathematics. Among the distinguished talks he has given are the Porter Lectures at Rice, the Whittemore Lectures at Yale, the Gergen Lectures at Duke, and the Pauli Lectures at ETH Zurich. Peter Sarnak's main work has been in spectral geometry, automorphic forms and zeta functions, and their applications to number theory, mathematical physics, and combinatorics. Professor Sarnak will be giving the AMS Colloquium Lectures.

Richard A Tapia is Noah Harding Professor of Computational and Applied Mathematical Sciences and the Associate Director of the Center for Research in Parallel Computation at Rice University. Among many prestigious honors, he was elected to the National Academy of Engineering and was the first native-born Hispanic ever to receive this recognition, he was appointed to serve on the National Science Board, he won a Presidential Award for Excellence in Mathematics, Science, and Engineering Mentoring, and he won the American Association for the Advancement of Science Mentor-Lifetime Achievement Award. In less than a decade, Richard Tapia has spearheaded a nationally recognized model outreach program for minorities and women. He is widely known for his outstanding contributions to aiding members of underrepresented groups within the computing community.Professor Tapia will be giving an MAA Invited Address.