Education

Ph.D., 1986, Cornell University, Operations Research

B.S., 1980, Iowa State University, Mathematics
Research

Optimization

Combinatorics
Selected Publications
 Acyclic Digraphs Giving Rise to Complete Intersections,
to appear in Journal of Commutative Algebra.
 A MihalisinKlee Theorem for Fans, (With R. Locke),
Discrete and Computational Geometry 56(1) (2016), 114125.
 Efficient Computation of a Canonical Form for a Generalized Pmatrix,
Mathematical Programming 153 (2015), 275288.
 Chromatic Numbers of Copoint Graphs of Convex Geometries,(with J. Beagley),
Discrete Mathematics 331 (2014), 151157.
Selected Presentations
 Acyclic Digraphs Giving Rise to Complete Intersections
Seminars, US Naval Academy, May 2017 and at Chonnam University, Dec. 2016
 A Directed Steinitz Theorem for Oriented Matroid Programs
Int. Conf. Cont. Opt., Tokyo, Aug. 2016 and BIRS Oaxaca, Nov. 2015
 A MihalisinKlee Theorem for Fans, Int. Symp. Math. Prog.,
Pittsburgh, July 2015
 A MihalisinKlee Theorem for Fans, AMS sectional meeting, Washington, DC, March 2015.
 Chromatic Numbers of Copoint Graphs of Convex Geometries, AMS sectional meeting, Ames, Iowa, April 2013.
 Efficient Computation of a Canonical Form for a Generalized PMatrix, AMS sectional meeting, Boulder, Colorado, April 2013.
