Barbara Keyfitz

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Barbara Keyfitz 1982

Barbara Lee Keyfitz (born November 7, 1944 in Ottawa , Canada ) is a Canadian-American mathematician .

Life

Barbara Keyfitz was born as the daughter of the demographer Nathan Keyfitz (1913-2010) and his wife Beatrice (Orkin) Keyfitz (1913-2009). She studied mathematics and received her Bachelor of Science degree from the University of Toronto in 1966 . Then she moved to New York University , where she received her Master of Science degree in 1968 . In 1970 she was at the Courant Institute of Mathematical Sciences for Ph.D. PhD . Her doctoral supervisor was Peter Lax . From 1970 to 1976 she was Assistant Professor at Columbia University and from 1977 to 1979 Lecturer at Princeton University . She then worked at Arizona State University as an Assistant Professor (1979–1981) and Associate Professor (1981–1983). From 1983 to 2008 she worked at the University of Houston as Associate Professor (1983–1987), Professor (1987–2008), John and Rebecca Moores University Scholar (1998–2000) and John and Rebecca Moores Professor (2000–2008 ). From 2004 to 2008 she was also President of the Fields Institute at the University of Toronto. Since 2009 she has been Dr. Charles Saltzer Professor at Ohio State University . She was a visiting researcher at the University of Nice Sophia-Antipolis (1980), Duke University (1981), University of California, Berkeley (1982), University of Saint-Étienne (1988), Institute for Mathematics and its Applications (1989), University of Warwick (1989), Fields Institute at the University of Waterloo (1993), Brown University (1999–2000), Chinese University of Hong Kong (2001) and at the National Center for Theoretical Sciences Taiwan (2002).

Keyfitz works in the field of applied mathematics . She deals with non-linear partial differential equations , especially with hyperbolic conservation laws , but also with conservation laws that are not strictly hyperbolic or that change their type from hyperbolic to elliptic. These can appear in models of multiphase flows in porous media . Keyfitz worked on free boundary value problems to better understand transonic flows , and she studied bifurcation problems in reaction diffusion equations , especially in shock wave theory .

In 1992 she became a Fellow of the American Association for the Advancement of Science . In 2005 she received the Canadian Mathematical Society's Krieger Nelson Prize , the University of Houston Esther Farfel Award in 2006 and the SIAM Prize for Distinguished Service to the Profession in 2012. From 2005 to 2007 she was President of the Association for Women in Mathematics and since 2011 she has been President of the International Council for Industrial and Applied Mathematics . In 2012 she was allowed to hold the Noether Lecture . Keyfitz is a member of the American Mathematical Society , the Society for Industrial and Applied Mathematics , von Sigma Xi , the Canadian Mathematical Society, and the Canadian Applied and Industrial Mathematics Society .

Barbara Keyfitz is married to the mathematician Martin Golubitsky and has two children.

Works

  • Barbara Kefitz Quinn [correct: Barbara Keyfitz Quinn]: Time-Decreasing Functionals of Nonlinear Conservation Laws. Thesis (Ph. D.), New York University, 1970
  • Barbara Lee Keyfitz and Herbert C. Kranzer (Editors): Nonstrictly hyperbolic conservation laws. Proceedings of an AMS Special Session held January 9-10, 1985 (= Contemporary mathematics, Volume 60). American Mathematical Society, Providence 1987, ISBN 0-8218-5069-5
  • Barbara Lee Keyfitz, Michael Shearer (Editor): Nonlinear evolution equations that change type (= IMA volumes in mathematics and its applications, Volume 27). Springer, Berlin [a. a.] 1990, ISBN 3-540-97353-2

literature

Web links

Individual evidence

  1. ↑ on Nathan Keyfitz see: Professor Nathan Keyfitz dies at 96. In: Harvard Gazette. April 9, 2010; and his memoir: Nathan Keyfitz: Notes of a Wayfarer. Two intertwined lives. The memories of Beatrice and Nathan. 2004
  2. ^ SIAM Prize for Distinguished Service to the Profession. on the website of the Society for Industrial and Applied Mathematics
personal data
SURNAME Keyfitz, Barbara
ALTERNATIVE NAMES Keyfitz, Barbara Lee (full name)
BRIEF DESCRIPTION Canadian-American mathematician
DATE OF BIRTH November 7, 1944
PLACE OF BIRTH Ottawa , Canada