



László Székely
![]() |
|
|
Education
| C.Sc. | Mathematics | Hungarian Academy of Sciences | 1987 |
| Ph.D. | Mathematics | Eötvös University, Budapest | 1983 |
| M.S. | Mathematics | Eötvös University, Budapest | 1980 |
Experience
| 2005 – 2007 | Interim Director | Industrial Mathematics Institute, Univ. of South Carolina |
| 2002 – 2003 | Visiting Fellow | National Center for Biotechnology Information, Bethesda MD |
| 1996 – Present | Professor | Department of Mathematics, University of South Carolina |
| 1994 – 1996 | Director | Institute of Mathematics I, Eötvös University, Budapest |
| 1992 – 1993 | Visiting Assoc. Professor | University of New Mexico, Albuquerque |
| 1991 – 1992 | Alexander von Humboldt Fellow | Rheinische Friedrich-Wilhelms Universität, Institu für Ökonometrie und Operations Research, and Institut für Diskrete Mathematik, Bonn, Germany |
| 1991 – 1996 | Senior Associate Professor | Eötvös University, Budapest |
| 1990 | Visitor | Memphis State University, TN |
| 1988 – 1990 | Visiting Assoc. Professor | University of New Mexico, Albuquerque |
| 1986 – 1987 | Postdoctoral Fellow | University of Auckland, New Zealand |
| 1984 – 1991 | Associate Professor | Eötvös University, Budapest |
| 1982 – 1984 | Research Fellow | József Attila University, Szeged |
Research
Research Interests
- Combinatorial geometry: Erdos type problems in geometry, density of sets without certain distances, maximum number of unit distances or minimum number of distinct distances in finite point sets, Szemeredi-Trotter type theorems
- Graph drawing: crossing numbers of graphs, applications of crossing numbers of graphs to discrete geometry, graph drawing algorithms on surfaces, books, etc., approximation algorithms for crossing number problems
- Phylogeny reconstruction: stochastic models of the evolution of biomolecular sequences, identifiability conditions for reconstructible past, polynomial time algorithms for phylogeny reconstruction, the length of biomolecular sequences necessary for phylogeny reconstruction for all methods and for particular methods, Fourier-Hadamard transform
- Discrete probability: stochastic models for biomolecular sequence evolution, derandomization of randomized algorithms for graph drawing, Lovasz Local Lemma
- Design and analysis of algorithms: algorithms for graph drawing, approximation algorithms for crossing number problems, algorithms for phylogeny reconstruction
- Combinatorial optimization: the multiway cut problem, integral uniform multicommodity flow problem
- Extremal problems (graphs and set systems): Erdos-Ko-Rado type theorems, Sperner and LYM type theorems, extremal graph theory
Current Projects
- NSF DMS1000475, "Extremal and Probabilistic Combinatorics II," (2010-2013) - (1) finding connections between Sperner theory (extremal problems for families of sets) and mixed orthogonal arrays (tools used by statisticians to design experiments with desirable properties for statistical evaluation); and (2) using the Lovasz Local Lemma for negative dependency graphs for asymptotic enumeration, searching for novel negative dependency graphs.
- FA9550-12-1-0405 by DARPA and AFOSR, "Ensemble-Based Modeling of Large Graphs and Its Applications to Social Networks," Phase I 2012-2013, in collaboration with Notre Dame University, RPI, University of Houston, and Renyi Institute, Budapest. (1) generation of graphs and networks with prescribed properties, with uniform or near-uniform distributions, modeling random networks; (2) finding practical applications of the Lovasz Local Lemma; (3) work on fundamental issues of pattern extraction from noise; and (4) defining novel concepts of distances of networks for the purpose of periodic distance detection.
BACK TO TOP
Teaching Activities
Current Courses
- Math 141 - Calculus I
- Math 775 - Discrete Mathematics II
Previous Courses
- Math 141 - Calculus I
- Math 241 - Vector Calculus
- Math 374 - Discrete Structures
- Math 774 - Discrete Mathematics
- Math 778B - Selected Topics: The Linear Algebra Method in Combinatorics
BACK TO TOP
Honors and Other Special Scientific Recognition
- "People’s Republic Scholar" 1978–79 and 1979–80
- "Alexander von Humboldt Fellow", 1991–92, 2010
- "Doctor of the Hungarian Academy of Sciences", 1998
- "Russell Research Award", University of South Carolina, 2007
- Elsevier "Top Cited Paper in Adv. Appl. Math. Award" 2010 (for the paper L. A. Szekely and Hua Wang, On subtrees of trees, Adv. Appl. Math. 34, (2005), 138-155.)
BACK TO TOP
Selected Publications
- H. Aydinian, E. Czabarka, P. L. Erdos, L. A. Szekely, A tour of M-part L-Sperner families, J. Comb Theory Ser A. 118(2011), 702-725.
- M. A. Steel, L. A. Szekely, E. Mossel, Phylogenetic information complexity: is testing a tree easier than finding it? J. Theor. Biology 25(2009), 95-102.
- P. L. Erdos, M. A. Steel, L. A. Szekely, and T. J. Warnow, A few logs suffice to build (almost) all trees I, Random Structures and Algorithms 14(1999)(2), 153-184.
- L. A. Szekely, Crossing numbers and hard Erdos problems in discrete geometry, Combinatorics, Probability, and Computing 6(3)(1997), 353-358.
- F. Shahrokhi, O. Sykora, L. A. Szekely and I. Vrto, The crossing number of a graph on a compact 2-manifold, Adv. Math. 123, (1996), 105-119.
BACK TO TOP
IMI Preprints and Seminars
Go to the list of 26 preprints and 1 seminar by László Székely.BACK TO TOP


