Dr. Petros Hadjicostas
Position
Assistant Professor
Department of Mathematics and Statistics
Texas Tech University
Box 41042
Lubbock, TX 79409-1042
USA
Office Phone: (806) 742-2568
Fax: (806) 742-1112
Email: petros.hadjicostas@ttu.edu
Education
Ph.D. in Statistics, 1995, Carnegie Mellon University.
M.S. in Statistics, 1991, Carnegie Mellon University.
M.S. in Mathematics, 1990, Carnegie Mellon University.
B.S. in Mathematics (with University Honors), 1990, Carnegie Mellon University.
Teaching Experience
(a) 1990-1995 -- Carnegie Mellon University, Department of Statistics (as a graduate student during summers)
(b) 1995-1999 -- University of Cyprus, Department of Public and Business Administration (as a visiting assistant professor and a lecturer)
(c) 1999-2001 -- SUNY Brockport, Department of Mathematics (as an assistant professor)
(d) 2001-present -- Texas Tech University, Department of Mathematics and Statistics (as an assistant professor):
Publications
1. Kok Hooi Tan and Petros Hadjicostas (1995), ``Some Properties of a Limiting Distribution in Quicksort,'' Statistics and Probability Letters, 25, 87-94.
2. Petros Hadjicostas (1997), ``Copositive Matrices and Simpson's Paradox,'' Linear Algebra and its Applications, 264, 475-488.
3. Petros Hadjicostas (1998), ``Improper and Proper Posteriors With Improper Priors in a Hierarchical Model with a Beta-Binomial Likelihood,'' Communications in Statistics: Theory and Methods, 27, 1905-1914.
4. Petros Hadjicostas (1998), ``The Asymptotic Proportion of Subdivisions of a 2 x 2 Table that Result in Simpson's Paradox,'' Combinatorics, Probability and Computing, 7, 387-396. Corrigendum (1999), 8, 599.
5. Petros Hadjicostas and Scott Berry (1999), ``Improper and Proper Posteriors with Improper Priors in a Poisson-Gamma Hierarchical Model,'' TEST, 8, 147-166.
6. Petros Hadjicostas (2000), ``Rate of Convergence of the Probability of Non-existence of the MLE's in Simple Logistic Regression,'' Mathematical Methods of Statistics, 9, 208-222.
7. Petros Hadjicostas and George C. Hadjinicola (2001), ``The Asymptotic Distribution of the Proportion of Correct Classifications for a Holdout Sample in Logistic Regression,'' Journal of Statistical Planning and Inference, 92, 193-211.
8. Petros Hadjicostas (2001), ``Asymptotic Upper Bounds for the Proportion of Simpson Subdivisions of a 2 x 2 Table,'' Communications in Statistics: Simulation and Computation, 30, 1031-1051.
9. Petros Hadjicostas (2002), ``Symmetric and Isomorphic Properties of Qualitative Probability Structures on a Finite Set,'' Statistics and Probability Letters, 56, 309-319.
10. Petros Hadjicostas (2002), ``Some Generalizations of Beukers' Integrals,'' Kyungpook Mathematical Journal, 42, 399-416; available at http://webbuild.knu.ac.kr/~kmj/.
11. Petros Hadjicostas (2003), ``Consistency of Logistic Regression Coefficient Estimates Calculated from a Training Sample,'' Statistics and Probability Letters, 62, 293-303.
12. Petros Hadjicostas and K.B. Lakshmanan (2005), ``Bubble Sort with Erroneous Comparisons,'' The Australasian Journal of Combinatorics, 31, 85-106.
13. Roger W. Barnard, Petros Hadjicostas, and Alexander Yu. Solynin (2005), ``The Poincaré metric and isoperimetric inequalities for hyperbolic polygons,'' Transactions of the American Mathematical Society, 357, 3905-3932.
14. Petros Hadjicostas and Andreas C. Soteriou (2006), ``One-sided Elasticities and Technical Efficiency in Multi-output Production: A Theoretical Framework,'' European Journal of Operational Research, 168, 425-449.
15. Petros Hadjicostas (2006), ``Maximizing Proportions of Correct Classifications in Binary Logistic Regression," Journal of Applied Statistics, 33, 629-640.
16. Jonathan Sondow and Petros Hadjicostas (2007), ``The Generalized-Euler-Constant Function γ(z) and a Generalization of Somos's Quadratic Recurrence Constant," Journal of Mathematical Analysis and Applications, 332, 292-314.
Other Papers
1. Petros Hadjicostas (1990), ``Mechanical Damping in Fibers,'' Thesis for the Degree of Master of Science for Mathematics (Honors Degree Program), Department of Mathematics, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
2. Petros Hadjicostas (1994), ``Characterization of the Almost Agreeing Probabilities for the Kraft - Pratt - Seidenberg Structures,'' Technical Report, Department of Statistics, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
3. Petros Hadjicostas (1995), ``Probabilistic Analysis of Association Reversal Phenomena,'' Ph.D. thesis, Department of Statistics, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
4. Petros Hadjicostas (2004), "A conjecture-generalization of Sondow's formula," preprint, available at http://arXiv.org/abs/math/0405423.