Kutatási terület:

Számítástudomány, ezen belül elsősorban algebrai és aritmetikai algoritmusok, szimbolikus számítások. Az algebra alkalmazásai, diszkrét matematika.

Válogatott közlemények:

Polynomial time solutions to some problems in computational algebra; in: Proc. of the 17th Annual ACM Symposium on the Theory of Computing, Providence (1985), 153-162. (with K. Friedl)

Norm-graphs and bipartite Turán numbers; Combinatorica 16, (1996) 399-406. (with J. Kollár, T. Szabó)

Norm-graphs: variations and applications; Journal of Combinatorial Theory, Ser. B. 76, (1999) 280-290. (with N. Alon and T. Szabó)

A combinatorial problem on polynomials and rational functions; Journal of Combinatorial Theory, Ser. A. 89, (2000) 1-20. (with Gy. Elekes)

On the number of zero-patterns of a sequence of polynomials; Journal of the AMS 14, (2001), 717-735. (with L. Babai and M. Ganapathy)

Algorithms (in Hungarian); TypoTeX Kiadó, 1998, 1-349. (with G. Ivanyos and R. Szabó)

 Splitting full matrix algebras over algebraic number fields, Journal of Algebra, 354(2012), 211--223.
(with G. Ivanyos,  and J. Schicho)

Internet Optical Infrastructure - Issues on Monitoring and Failure Restoration, Springer, 2014, 1--212.
[ISBN 978-1-4614-7737-2] (with J. Tapolcai, P-H. Ho, P. Babarczi)

Seven mutually touching infinite cylinders; Computational Geometry: Theory and Applications, 48(2015), 87-93. (with S Bozoki, T-L. Lee)