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James A Yorke
Distinguished University
Research Professor of Mathematics and Physics Institute for Physical
Science and Technology |
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A.B., A Recent Lecture
on Video: Partial
Control of chaos Banff 2012 James Yorke came to the University of
Maryland as a math graduate student in 1963 hoping to explore
interdisciplinary mathematics. Those hopes were fully realized after he ear
ned his Ph.D. and joined the faculty of UMD's IPST, an Institute established in 1950 and committed to
interdisciplinary research in the sciences. A degree in mathematics is a license to
explore the universe. His research papers range from
chaos theory and genome research and the population dynamics of the HIV/AIDS
epidemic. His chaos research is primarily on period doubling cascades and
partial control of chaos. He acknowledges the benefits of having superb collaborators! Prof. Yorke has supervised about50 Ph.D.
dissertations in the Depts. of Mathematics, Physics, and Computer Science.
Dr. Yorke's Curriculum Vitae
includes a list of over 300 publications, many with abstracts, and is
available online, as is a list of those most
frequently cited. He is perhaps best known to the general
public for coining the mathematical term "chaos" with T.Y. Li in a
1975 paper entitled "Period
Three Implies Chaos". "Chaos" is a mathematical concept
for processes that vary according to precise deterministic laws but appear to
behave in random fashion. The University's
chaos research group, is one of the best in the
world. Yorke aims at describing those robust properties that are common in
the dynamics of physical, biological, and chemical systems. Sometimes he
describes the phenomena using rigorous mathematics, and sometimes only via
phenomenological descriptions from intensive numerical studies. Most often,
the research is a blend of numerical and rigorous techniques. Professor Yorke has coauthored three books
on chaos and a monograph
on gonorrhea epidemiology:
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