School of Mathematics
College of Sciences
Harrell works on the Schrödinger equation, which describes nonrelativistic matter on the atomic scale, and on similar differential equations. His research has focused primarily on semiclassical quantum mechanics and on the effects of geometry on the eigenvalues of differential equations. He has advised eight PhD dissertations and two MS theses, and has written numerous articles with at least thirty-five coauthors.
Harrell is an enthusiastic outdoorsman, and among his other interests are travel and world cultures. He has for example participated in many scientific events in developing countries. He has two grown children and lives in Atlanta with his wife, a law professor, when not off somewhere satisfying his wide-ranging curiosity.
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