COLLEGE OF ARTS AND SCIENCES Department of Mathematics and Statistics


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Mathematics Colloquium: Linear and Nonlinear Waves in Gas Dynamics


Neill 5W, 4:10pm

Dr. Barbara Lee Keyfitz

This talk explores some puzzles of multidimensional conservation laws (quasilinear hyperbolic partial differential equations) by looking at two types of characteristic families in a model system, the Euler equations of compressible fluid flow. There is as yet no existence theory for such systems, and a considerable amount of recent activity raises questions of whether these equations, and others like them, are even well-posed. The classical theory of characteristics provides a framework that unifies some observations, and suggests directions for further study. Reception at 3:30 pm in Neill 216 The Calvin and Jean Long Distinguished Lecture in M athematics brings internationally renowned mathematics scholars to the WSU campus each fall. The lecture honors former department chairman and professor emeritus Calvin Long and his wife Jean who arrived at WSU, then WSC, in the fall of 1956. After working in the M athematics Department at WSU for 36 years he retired in 1992.