Recent preprints of D. Szász

• Hard Ball Systems are Completely Hyperbolic (joint with N. Simanyi) ( dvi , postscript )
• Boltzmann's Ergodic Hypothesis: A Conjecture for Centuries? ( dvi , postscript ) Appeared in Studia Sci. Math. Hung. Vol. 31 (1996) 299-322
• Cylindric Billiards and Transitive Lie Group Actions (joint with N. Simanyi) ( dvi , postscript )