ISSN: 0002-9920 (Print) 1088-9477 (Electronic) 
 
Current Issue: April  2002  Volume 49  Issue 4 
 

Features

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Expansions That Grow on Trees

Arieh Iserles

Most linear systems of ordinary differential equations can be solved only by techniques of approximation. The author discusses a method of geometric integration using rooted trees and graded Lie algebras.
(pp. 430)
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Interview with Louis Nirenberg

Louis Nirenberg is one of the great analysts of the twentieth century. In this interview, he reminisces about his long career at the Courant Institute of Mathematical Sciences, some highlights of his research, and the joys of mathematical collaboration.
(pp. 441)
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Communications

September 11th Did Not Change Cryptography Policy
Whitfield Diffie and Susan Landau

A Beautiful Mind
A Movie Review
Reviewed by Lynne M. Butler

The Story of Mathematics
A Book Review
Reviewed by Karen Hunger Parshall

Flatterland: Like Flatland, Only More So
A Book Review
Reviewed by Jody Trout

2002 Steele Prizes

2002 Bôcher Prize

2002 Cole Prize in Number Theory

2002 Award for Distinguished Public Service

2002 Conant Prize

Departments

Opinion

Mathematics People

Mathematics Opportunities

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Inside the AMS

Reference and Booklist

Mathematics Calendar

New Publications Offered by the AMS

Publications of Continuing Interest

Meetings and Conferences

Meetings and Conferences Table of Contents

From the AMS Secretary

Nominations for Notices Editor Position

Call for Nominations for 2003 Birkhoff, Cole, Conant, and Satter Prizes

Call for Nominations for E. H. Moore Research Article Prize