Mathematical interests
I am an algebraic geometer. I have mainly worked on the generalisation on the
MiyaokaYau inequality to singular surfaces and its applications, on
problems in finite characteristic and on enumerative geometry.
My Erdős number is 3, as is my father's, my brother's is only 2.
I am also interested in algebraic and computational
number theory and tropical mathematics.
Publications

(with L. Csirmaz) Solutions to two questions of the 1982
International Mathematical Olympiad (in
Hungarian). Középiskolai Matematikai Lapok 34
(1984), 811.
 Chern Classes for Qsheaves. In J. Kollár et. al.,
Flips and Abundance for Algebraic Threefolds, volume 211 of
Astérisque, chapter 10. Société
Mathématique de France, 1992.
 Inequalities between Chern classes. Ph. D. thesis,
University of Cambridge, 1993.
 Bogomolov instability of higher rank sheaves in characteristic
p. Math. Ann. 301 (1995) 529538.
 Fano threefolds in characteristic p J. Alg. Geom. 7 (1998)
207218.
 (with E. Szabó) On the tacnodes of configurations of conics
in the projective plane. Math. Ann. 305 (1996) 693703.
 Generalisation of the BogomolovMiyaokaYau inequality to singular
surfaces. Proc. London Math. Soc. (3) 78 (1999) 241282.

Configurations of conics with many tacnodes.
Tohoku Math. J. 52 (2000), 555577.
 The rationality of configuration spaces of
lines in P^{3}.
Math. Proc. Cambridge Philos. Soc. 128 2000, 193196.
 Lines tangent to 4 unit spheres with coplanar centres (2001) 8 pp.
Some useful mathematical links
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