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Greetings and Welcome to My Home Page!I am an applied mathematician interested in the mathematics of physical systems. My research focuses on the development of analytical and numerical methods for differential equations describing these systems.My current research interest is in the application of dynamical systems techniques to the Earth's climate system. I am a co-director of the "Mathematics and Climate Research Network," an NSF-funded network linking researchers across the U.S. to develop the mathematics needed to better understand the Earth's climate. My current academic affiliations are with Georgetown University in Washington, DC, where I am Adjunct Professor in the Department of Mathematics and Statistics, and the University of Illinois at Urbana-Champaign, where I am Adjunct Professor in the School of Music. I am a Fellow of the Society for Industrial and Applied Mathematics (SIAM), class of 2009, and a member of the SIAM Committee on Science Policy. I spent most of my scientific career in the Mathematics and Computer Science Division (and its predecessor, the Applied Mathematics Division) of Argonne National Laboratory. I retired from Argonne in December 2008 but retain my affiliation with the laboratory as Senior Mathematician Emeritus. I have held visiting positions at several universities in the U.S. and abroad, and have served the mathematics community as Program Director in the Division of Mathematical Sciences of the National Science Foundation from 2001 until 2008, with an interruption in 2004-'05. I reside in Washington, DC. (Note: The District of Columbia is not a state. We have no representative in the United States Congress. This colonial status is based on the U.S. Constitution, Article 1, Section 8, Clause 17. "Taxation without Representation.") My coordinates are given below. |