Csaba
D. Tóth
Associate Professor
Department of Mathematics
California State University, Northridge
Room SN 434, 18111 Nordhoff St
Northridge, CA 91330-8313
Phone: (818) 677-2826
cdtoth ♠ acm.org
Open problems:
The Open Problems
Project (Erik D. Demaine - Joseph S. B. Mitchell - Joseph
O'Rourke)
Open Problem Garden
(created by Matt DeVos and Robert ámal)
Combinatorial
Problems (Josh Cooper)
Open
Problems (Jeff Erickson, 2001)