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Texas Tech University Department of Mathematics & Statistics
Assistant Professors



Biographical Sketch:

Dr. Eugenio Aulisa graduated in Nuclear Engineering form the University of Bologna (Italy) in 2001 and obtained his Ph.D in Energetic, Nuclear and Environmental Control Engineering from the same institution in 2005. His first appointment at Texas Tech was as a Visiting Assistant Professor before entering a tenure-track position in 2007. His primary research intersets are Computational Fluid Mechanics, finite element methods, multigrid solvers, non-linear flows in porous media and Fluid-Structure Interaction problems.

Assistant Professor
Ph.D., 2005, University of Bologna;

Research: Computational Fluid Dynamics

E-mail: eugenio.aulisa@ttu.edu,
Phone: 742-2580 x 270, Office: 222

Biographical Sketch:

Lars Winther Christensen graduated from the University of Copenhagen in 1995 and obtained his Ph.D. from the same institution in 1999. After this he worked with telecommunications and cypto software development. In 2004 Lars went to University of Nebraska as visiting professor, and in 2007 he joined Texas Tech University.

Lars' research is in algebra; his interests focus an applications of homological and homotopical algebra to ring theory. Lars is the author of a monograph on Gorenstein homological dimensions.

Assistant Professor
Ph.D., 1999, University of Copenhagen;

Research: Algebra

E-mail: lars.w.christensen@ttu.edu,
Phone: 742-2580 x 366, Office: 227

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Biographical Sketch:

Dr Jerry Dwyer has a BA in mathematical sciences, an MSc in Computer Science and a PHd in applied mathematics, all from University College Cork, Ireland. His dissertation work was in numerical methods for PDE's, with applications in mechanics.

Dr Dwyer worked for many years in computaional mechanics related to fracture, composite materials and glaciology. In recent years he has focused his work on issues of math education and developed a range of K-12 outreach projects at the University of Colorado and the University of Tennessee before arriving at Texas Tech as an assistant professor in Fall 2003.

Assistant Professor
Ph.D., 1986, National University of Ireland;

Research: Complex Dynamics, Math Education

E-mail: jerry.dwyer@ttu.edu
Phone: 742-2580 x 230, Office: 216

Biographical Sketch:

Victoria Howle's research is in applied mathematics with a focus mainly on numerical linear algebra. Her main research interests have been in physics-based preconditioning for incompressible fluid flow problems, developing iterative methods and preconditioners for the solution of highly ill-conditioned systems that arise in faulted electrical power networks, and fault-tolerant linear algebra.

Dr. Howle received a B.A. in English Literature from Rutgers University in 1988. After working for a number of years as a technical writer at several software companies, she returned to school to study mathematics. She received her M.S. in 1998 and Ph.D. in 2001 from the Center for Applied Mathematics at Cornell University. Before coming to Texas Tech in 2007, she worked for seven years as a research mathematician in the Computational Science and Mathematics Research Department of Sandia National Laboratories in Livermore, California.

Assistant Professor
Ph.D., 2001, Cornell University;

Research: Numerical Analysis.

E-mail: victoria.howle@ttu.edu ,
Phone: 742-2580 x 264, Office: 217

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Biographical Sketch:

Dr. Juan received an undergraduate degree with honors (Titulo de Oro) in Mathematics from the University of Havana in 1991. From 1991-1995 she worked first as a trainee and then as a research resident in the department of Artificial Intelligence and Pattern Recognition of the Cuban Academy of Sciences. In 1995 she was granted the first student visa that the US government gave in Cuba since the 1960's to pursue doctoral studies at the University of Oklahoma. She graduated with a PhD in Mathematics in 2000 under the direction of Professor Andy Magid. She was a Postdoctoral Fellow at the Mathematical Sciences Research Institute in Berkeley during 2000-2001, and has been an assistant professor at Texas Tech University since the Fall of 2001.

Dr Juan reasearch interests include the Galois Theory of differential and difference equations, algebraic groups and computer algebra.

Assistant Professor
Ph.D., 2000, University of Oklahoma;

Research: Algebra


Phone: 742-2580 x 274, Office: 235

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Biographical Sketch:

Arne Ledet graduated from University of Copenhagen (Denmark) in 1992, and obtained his Ph.D. from the same institution in 1996. His subsequent postdoctoral employment included stays at Queen's University (Canada), MSRI (USA), Tokyo Metropolitan University (Japan), and University of Waterloo (Canada), before he came to Texas Tech in 2002 as Assistant Professor.

His graduate and postgraduate work was in Galois theoretical embedding problems. Currently, his research is concerned with the related problem of constructing generic polynomials for Galois extensions. He is the co-author of a book on this subject, "Generic Polynomials" (with C. U. Jensen and N. Yui), published in 2002.

Assistant Professor
Ph.D., 1996, University of Copenhagen;

Research: Algebra.

E-mail: arne.ledet@ttu.edu
Phone: 742-2580 x 266, Office: 221

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Biographical Sketch:

Chris Monico received a B.S. in mathematics from Monmouth University, and the degrees of M.S. and Ph.D. from the University of Notre Dame. For the academic year 2002 Chris was a postdoctoral researcher at Notre Dame, before coming to Texas Tech in 2003.

Dr. Monico has many varied research interests. His dissertation was primarily concerned with cryptology and certain computational algebra problems. He also has worked on implementing the homotopy- continuation method for numerically solving polynomial systems. A common theme through much of his research is applied computer science. Some particular computer topics of interest are computer security via cryptography, and possible defenses against the next generation of polymorphic computer viruses.

Assistant Professor
Ph.D., 2002, University of Notre Dame;

Research: Cryptography

E-mail: c.monico@ttu.edu
Phone: 742-2580 x 271, Office: 252

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Biographical Sketch:
Lih-Ing Wu Roeger received a B.S. degree in mathematics at National Taiwan University and an M.S. degree in applied mathematics at National Tsin-Hua University in Taiwan. In 2000, she received a Ph.D. degree in mathematics from Purdue University in West Lafayette, Indiana. Before coming to Texas Tech University in 2002, Dr. Roeger was an Assistant Professor at Berea College in Berea, Kentucky.

Dr. Roeger's research specializations are mathematical biology and mathematical epidemiology. She had analyzed ordinary differential equation models for infectious diseases. She also studies the bifurcation dynamics as parameters were varied in the models. Her research agenda has been expanded to include discrete models, or difference equations.

Assistant Professor
Ph.D., 2000, Purdue University;

Research: Mathematical Biology

E-mail: lih-ing.roeger@ttu.edu,
Phone: 742-2580 x 249, Office: 228

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Biographical Sketch:
Byungtae Seo graduated from Seoul National University, Korea in 2001 and obtained his Ph.D. degree in Statistics from Penn State University in 2007. His dissertation work was in doubly-smoothed maximum likelihood estimation focusing on normal mixture model and measurement error model.

His current research interest involves Mixture(or latent class) models, Statistical distance, Nonparametric modelling, Bivariate survival data analysis, Missing data analysis, and Measurement error models.

Assistant Professor
Ph.D., 2007, Penn State University;

Research: Mixture(or latent class) models, measurement error models, survival data analysis, nonparametric statistics, missing data analysis

E-mail: byungtae.seo@ttu.edu,
Phone: 742-2580 x 269, Office: 215

Biographical Sketch:

Magdalena D. Toda came to the Texas Tech University in 2001. Her main research interests are in differential geometry and related integrable systems. Her dissertation and recent works emphasized applications of moving frame methods and Lie group theory to specific surface constructions. Her current research areas include Riemannian spaces, relativistic spaces, and geometric solutions of partial differential equations.

Assistant Professor
Ph.D., 2000, University of Kansas;

Research: Differential Geometry, Geometric Visualization

E-mail: magda.toda@ttu.edu
Phone: 742-2580 x 241, Office: 206

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