Theses Directed 

 

Steven E. Grossman, Ph.D. in Mathematics, 1969

Dissertation: Stability and Asymptotic Behavior of Differential Equations.

 

Shui-Nee Chow, Ph.D. in Mathematics, 1970

Dissertation: Almost periodic Differential Equation

 

James Kaplan, Ph.D. in Mathematics, 1970

Dissertation: Some Results in Stability Theory for Ordinary Differential Equations

 

Stephen H. Saperstone, Ph.D. in Mathematics, 1971

Dissertation: Controllability of Linear Oscillatory Systems Using Positive Controls

 

Thomas Martin Costello, Ph.D. in Mathematics, 1971

Dissertation: Fundamental Theory of Differential and Integral Equations

 

Robert Forest Brammer, Ph.D. in Mathematics, 1972

Dissertation: On the Controllability and Observability of finite Dimensional Systems

 

Gina Bari Kolata, M.S. in Mathematics, 1972

Dissertation: A Mathematical Model of Chemical Relaxation to a Cooperative Biochemical Process

 

Ana Lajmanovich Gergely, Ph.D. in Mathematics, 1974

Dissertation: Mathematical Models and the Control of Infectious Diseases

 

Tien-Yien Li, Ph.D. in Mathematics, 1974

Dissertation: Dynamics for xn+1 = F(xn)

 

Glenn Kelly, M.A. in Mathematics, 1974

Dissertation: The Kurzweil-Henstock Integral

 

Annett Nold, Ph.D. in Mathematics, 1977

Dissertation: Systems Approaching Equilibria in Disease Transmission and Competition for Resources

 

Ira Schwartz, Ph.D. in Mathematics, 1980

Dissertation: Proving the Existence of Unstable Periodic Orbits Using Computer-Based Estimates

 

Stephen Pelikan, Ph.D. in Mathematics from Boston U., 1983

Dissertation: The Dimension of Attractors in Surfaces

 

Brian Hunt, M.A. in Mathematics, 1983

Dissertation: When All Solutions of x' = ... Oscillate

 

Tobin Short, M.S. in Applied Mathematics, January 1984

Dissertation: The Development of Chaotic Attractors in the Early Stages of Horseshoe Development

 

Frank Varosi, M.S. in Applied Mathematics, December 1985

Dissertation: Efficient Use of Disk Storage for Computing Fractal Dimensions 

 

Eric Kostelich, Ph.D. in Applied Mathematics, December 1985

Dissertation: Basin Boundary Structure and Lorenz Cross Sections of the Attractors of the Double Rotor Map

 

Laura Tedeschini, Ph.D. in Applied Mathematics, June 1986

Dissertation: How Often Do Simple Dynamical Processes Have Infinitely Many Coexisting Sinks?

 

Peter Battelino, Ph.D. in Physics (co-advisors: Ott, Grebogi), 1987

Dissertation: Three-Frequency Periodicity, Torus Break-up, and Multiple Coexisting Attractors in a Higher Dimensional Dissipative Dynamical System

 

Zhi-Ping You, Ph.D. in Mathematics, l991

Dissertation: Numerical Study of Stable and Unstable Manifolds of Some Dynamical Systems.

 

Ying-Cheng Lai, Ph.D. in Physics (co-advisors: Ott, Grebogi), l992

Dissertation: Nonhyperbolicity in Classical and Quantum Chaos.

 

Troy Shinbrot, Ph.D. in Physics (co-advisors: Hunt, Ott), l992

Dissertation: Controlling Chaos: Using the Butterfly Effect to Direct Trajectories to Targets in Chaotic Systems.

 

Ivonne Diaz-Rivera, M. A. in Applied Mathematics, 1995

Scholarly Paper: Strange Attractor Reconstruction from Experimental Data: A Review

 

Wai Chin, Ph.D. in Math (co-advisors: Hunt, Ott), 1995

Dissertation: Chaotic Dynamics in Piecewise Smooth Systems.

In 2006 Associate Director for Biostatistics at Genzyme

 

Barry Peratt, Ph.D. in Math at University of Delaware (co-advisor: Kennedy), 1996

Dissertation: Mixing Powders and Scrambling Points.

 

Jacob Miller, Ph.D. in Math at University of Delaware (co-advisor: Kennedy), 1996

Dissertation: Finding Periodic Orbits of Maps: Basins of Attraction of Numerical Techniques.

 

Leon Poon, Ph.D. in Physics (co-advisors: Ott, Grebogi), 1996

Dissertation: Shadowability, Complexity, and Wada Basin Boundaries in Chaotic Systems.

 

Ali Fouladi, Ph.D. in Physics (co-advisor: Ott), 1996

Dissertation: Spatio-temperal Patterns and Chaos Control

 

Ernest Barreto, Ph.D. in Physics (co-advisor: Ott), 1996

Dissertation: Stability in Chaotic Systems

 

Guo-Hui Yuan, Ph.D. in Physics (co-advisors: Ott, Hunt), 1997

Dissertation: Shipboard Crane Control, Simulated Data Generation and Border - Collision Bifurcations

 

Guocheng Yuan, Ph.D. in Mathematics (co-advisors: Ott, Hunt), 1999

Dissertation: Properties of Numerical Experiments in Chaotic Dynamical Systems

 

Carl Robert, Ph.D. in Physics (co-advisors: Ott, Grebogi), 1999

Dissertation: Explosions in Chaotic Dynamical Systems: How New Recurrent Sets Suddenly Appear and a Study of their Periodicities

 

Josh Tempkin, Ph.D. in Mathematics, 1999

Dissertation: Spurious Lyapunov Exponents Computed Using the Eckmann – Ruelle Procedure

 

Mitrajit Dutta, Ph.D. in Physics  (co-advisor: Ott), 2000

Dissertation: Chaotic Systems Predictable Unpredictabilities and Synchronization

 

David Sweet, Ph.D. in Physics  (co-advisor: Ott), 2000

Dissertation: Higher Dimensional Non Linear Dynamical Systems: Bursting and Scattering

 

Dhanurjay (DJ) A.S. Patil, Ph.D. in Applied Mathematics, (co-advisors: Ott, Hunt, Kalnay) 2001

Dissertation:  Applications of Chaotic Dynamics to Weather Forecasting

 

Linda J. Moniz, Ph.D. in Mathematics, 2001

Dissertation:  Convergence of Dynamically Defined Upper Bounds Sets

 

Aleksey Zimin, Ph.D. in Physics, 2003 (co-advisor; E Ott was primary advisor)

Dissertation:  The Bubbling Transition and Data Assimilation

 

Michael Roberts, Ph.D. in Computer Science, 2003 (Samir Khuller was the official CS adviser)

Dissertation: A Preprocessor for Shotgun Assembly of Large Genomes

 

Michael Oczkowski, Ph.D. in Physics, 2003 (co-advisor with E Ott as primary advisor)

Dissertation: Scenarios for the Development of Locally Low Dimensional Atmospheric Dynamics

 

Kathleen A. Meloney, M.A. in Mathematics, 2004

Thesis: A Dynamical Systems approach to Estimating the Sequences of Repeat Regions in the Genome

 

William Ott, Ph.D. in Mathematics, 2004 (co-advisors: B. Hunt & D. Levermore)

Dissertation: Infinite-Dimensional Dynamical Systems and Projections

 

Brandy L. Rapatski, Ph.D. in Applied Mathematics and Scientific Computation, 2004 (co-advisor: F. Suppe)

Dissertation: The Non-Linear Transmission Dynamics of HIV/AIDS

 

Cevat Ustun, Ph.D. in Physics, 2005 (co-advisor: B. Hunt)

Dissertation: Improving Genome Assembly

 

Ian Frommer, Ph.D. in Applied Math and Sci. Computing, 2005 (co-advisors: Hunt & Bruce Golden)

Dissertation: Modeling and Optimization of Transmission Networks

 

Ryan Lance, Ph.D. in Mathematics, 2005 (co-advisor: B. Hunt)

Dissertation: Network State Estimation Via Passive Traffic Monitoring

 

Joseph Skufca, Ph.D. in Mathematics, 2005

Dissertation: Understanding a Chaotic Saddle with Focus On A 9-Variable Model of Planar Couette Flow

 

Christopher M. Danforth, Ph.D. in Applied Mathematics, 2006 (co-advisor: E. Kalnay)

Dissertation: Making Forecasts for Chaotic Processes in the Presence of Model Error

 

Suzanne S. Sindi, Ph.D. in Applied Mathematics, 2006 (co-advisor: B. Hunt)

Dissertation: Describing and Modeling Repeated Sequences in DNA

 

The nonlinear dynamics group generally has students work with several faculty members and as a result students have multiple advisors.

 

 

Postdocs supervised (jointly with collaborators)

 

Celso Grebogi

S. W. McDonald

Eric Kostelich

Brian Hunt

Silvina P. Dawson

Ernest Barreto

Myong-Hee Sung

Lyman Hurd

D.J. Patil

Crystal Cooper

Wayne Hayes, 11/2002 - 6/2004

Aleksey Zimin

Michael Roberts

Nandi Leslie 

University of Maryland

 

 

 

 

 

 

 

 

James A. Yorke

      

Distinguished University Professor of Mathematics and Physics 
Institute for Physical Sciences and Technology (IPST
University of Maryland
College Park, MD 20742


 

 

A.B., Columbia University 1963; Ph.D. in Mathematics, University of Maryland at College Park 1966

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 earned his Ph.D. and joined the faculty of  UMD’s IPST, an Institute established in 1950 and committed to interdisciplinary research in the sciences.

He believes a Ph.D. in mathematics is a license to investigate the universe.

His current research projects range from chaos theory and weather prediction and genome research and the investigation of computer networks to the population dynamics of the HIV/AIDS epidemic. He acknowledges the benefits of having superb collaborators! 

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:

·         Dynamics: Numerical Explorations (written with Helena Nusse) on computational aspects of chaos

·         Coping with Chaos (written with Edward Ott and Tim Sauer) is a collection of reprints focusing on how scientists observe, quantify, and control chaos.

·         Chaos: An Introduction to Dynamical Systems (written with Kathleen Alligood and Tim Sauer) -- an interdisciplinary math text for seniors and beginning graduate students.

Prof. Yorke has supervised approximately 40 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 short list of those most frequently cited.  

See also 

some papers and preprints,

an interview on “The Connection” a PBS radio show,

an interview by Tim Sauer on the Dynamical Systems Web Portal,

Childhood science influences,

Math 410, Advanced Calculus, Spring 2006.

Math 452, Chaos, Fall 2006

HIV testing – the controversy (new 9/2006)

 

Contact Information:

Professor James Yorke
Institute for Physical Sciences and Technology
UMCP, College Park, MD 20742
Email: Yorke2 at IPST.UMD.EDU

CMPSIPSTChaos Group