The National Science Foundations
Solving crossing number problems with applications, Principal Investigator, CCR-9988525, $169,280, 2000-2003.

The National Science Foundations
Crossing number problems in geometric drawings of graphs, Principal Investigator, CCR-9528228, $48,800, 1996-1999.

Service Recognition Award
UNT, 1999.

DIMACS
$6000, 1998-1999.

MCI Dallas
$15,000, 1995.

Nominee: D. Ray Fulkerson Prize in Discrete Mathematics
(jointly with D. W. Matula), 1994.

Nominee: Decker Scholar Award
UNT, 1993.

Nominee:Shelton Teaching Award
UNT, 1993,1994.

Nominee: Honor Professor's Award
UNT, 1994.