Azmy S. Ackleh
Professor
Dr. Ray P. Authement Eminent Scholar Endowed Chair in Computational Mathematics

Contact:
Office: 205a Maxim Doucet
Phone: 337-482-6709
E-mail: ackleh@louisiana.edu
Home page: http://www.ucs.louisiana.edu/~asa5773/

Degrees:
Ph.D. 1993 University of Tennessee at Knoxville
M.S. 1990 University of Tennessee at Knoxville
B.S. 1988 Cumberland College

Statement:
My main research interests are modeling in population and community ecology, long time behavior of solutions to such models, numerical methods, and inverse problems for partial differential equations.

Selected research publications:

• Competitive Exclusion in a Discrete Juvenile-Adult Model with Continuous and Seasonal Reproduction (with R. A. Chiquet), Journal of Difference Equations and Applications, accepted for publication.
• Measuring and Modeling the Seasonal Changes of an Urban Green Treefrog (Hyla cinerea) Population (with J. Carter , L. Cole , T. Nguyen, J. Monte and C. Pettit), Ecological Modeling, accepted for publication.
• Competitive Exclusion in a Discrete Stage-Structured Two Species Model (with P. Zhang), Mathematical Modelling of Natural Phenomenon, accepted for publication.
• Ecosystem Modeling of College Drinking: Development of a Deterministic Model for Testing Alcohol Control Policies (with R. Scribner, B.G. Fitzpatrick, G. Jacquez, J. Thibodeaux, R. Rommel, and N. Simonsen), Journal of Studies on Alcohol and Drugs, 70 (2009), 805-821.
• Ecosystem Modeling of College Drinking: Parameter Estimation and Comparing Models to Data (with B.G. Fitzpatrick, S. Scribner, N. Simonsen, J. Thibodeaux), Mathematical and Computer Modelling, 50 (2009), 481-497.
• A Nonautonomous Juvenile-Adult Model: Well-Posedness and Long-Time Behavior via a Comparison Principle (with K. Deng), SIAM Journal on Applied Mathematics, 69 (2009), 1644-1661.
• Invasion, Disturbance, and Competition: Modeling the Fate of Coastal Plant Populations (with S. Pathikonda, K. H. Hasenstein, S. Mopper), Conservation Biology, 23 (2009), 164-173.
• The Global Dynamics of a Discrete Juvenile-Adult Model with Continuous and Seasonal Reproduction (with R. Chiquet), Journal of Biological Dynamics, 3 (2009), 101-115.
• Discrete Three-Stage Population Model: Persistence and Global Stability Results (with P. DeLeenheer), Journal of Biological Dynamics, 2 (2008), 415-427.
• Parameter Estimation in a Structured Erythropoiesis Model (with J.J. Thibodeaux), Mathematical Biosciences and Engineering, 5 (2008), 601-616.
• A Monotone Approximation for a Size-Structured Population Model with a Generalized Environment (with K. Deng and J. Thibodeaux), Journal of Biological Dynamics, 1 (2007), 291-304.
• A Three-Stage Discrete-Time Population Model: Seasonal Versus Continuous Reproduction (with Y. Dib and S. Jang), Journal of Biological Dynamics, 1 (2007), 305-319.
• Population estimates of Hyla cinerea (Schneider) (Green Treefrog) in an urban environment (with L. Pham, S. Boudreaux, S. Karhbet, B. Price, J. Carter, and N. Pal), Southeastern Naturalist, 6 (2007), 203-216
• On a Nonlinear Size-Structured Phytoplankton-Zooplankton Aggregation Model (with K. Deng, S. Hu), Dynamics of Continuous, Discrete and Impulsive Systems, Series A, 14 (2007), 265-285.
• Establishing a beachhead: A Stochastic Population Model with an Allee Effect Applied to Species Invasion (with L.J.S. Allen and J. Carter), Theoretical Population Biology, 71 (2007), 290-300.
• A Discrete Two-Stage Population Model: Continuous Versus Seasonal Reproduction (with S. Jang), Journal of Difference Equations and Applications, 13 (2007), 261-274.
• Competitive Exclusion and Coexistence in a Nonlinear Refuge-Mediated Selection Model (with Y. Dib and S. Jang), Discrete and Continuous Dynamical Systems Series B, 7 (2007), 683-698.
• Comparison between Stochastic and Deterministic Selection-Mutation Models(with S. Hu), Mathematical Biosciences and Engineering, 4 (2007), 133-157.
• Asymptotic Behavior of Solutions to a Nonlinear Size-Structured Population Model (with K. Deng, X. Wang), International Journal of Information and System Sciences, 2 (2006), 316-325.
• A Structured Erythropoiesis Model with Nonlinear Cell Maturation Velocity and Hormone Decay Rate (with K. Deng, K. Ito and J.J. Thibodeaux), Mathematical Biosciences, 204 (2006) 21-48.