Interests	Geometrical Packing
	Combinatorial Geometry
	Game Theory
	Graph Theory
	Computational Complexity
Education	Ph.D. in Mathematics, Cornell University, 1991
	M.S. in Mathematics, Cornell University, 1989
	B.S. in Mathematics, Rose-Hulman Institute of Technology, 1987
Employment	Associate Professor, Stetson University, 1998-present (Chair, 2000-2003)
	Assistant Professor, Stetson University , 1992-1998
	Acting Assistant Professor, Cornell University, 1991-1992
	Instructor, Cornell University, 1990-1991
Refereed Papers	Covering Squares with Unit Squares, (with David A. Paterson),            Geombinatorics, Volume XV 3 (2006) 130-137.
	Hinged Dissection of Polyominoes and Polyforms,            (with Erik Demaine, Martin Demaine, David Eppstein and Greg Frederickson),            Computational Geometry Theory & Applications, Volume 31, 3 (2005) 237-262.
	30 Two-Colored Points with No Empty Monochromatic Convex Fourgons,            Geombinatorics, Volume XIV, 2 (2004) 53-54.
	Partridge Numbers, (with Patrick Hamlyn),            Geombinatorics, Volume XIII 1 (2003) 10-18.
	Pascal's Triangle and the Boltzmann Distribution (with Tandy Grubbs),            The Chemical Educator, 8 (2003) 116-121.
	Squares Touching a Constant Number of Other Squares,            Geombinatorics, Volume XII, 2 (2002) 55-60.
	Constant Neighbor Dihedral Tilings with 15, 32, and 43 Neighbors            (with Berend Jan van der Zwaag),            Geombinatorics, Volume XI, 3 (2002) 74-77.
	Magic Carpets (with Mike Keith),            Electronic Journal of Integer Sequences, Volume 3, Issue 2 (2000)
	N-Vex Shapes, Geombinatorics, Volume IX, 4 (2000) 159-163.
	Heesch Tiles with Surround Numbers 3 and 4,            Geombinatorics, Volume VIII, 4 (1999) 101-103.
	Packing Unit Squares in Squares: A Survey and New Results,            Electronic Journal of Combinatorics, DS7, 1998, 2000, 2002, 2005, 2009
	How Many Bridge Auctions? (with Douglas Jungreis),            College Mathematics Journal, 19 (1988) 171-172.
Other Papers	Cubic is NP-complete, Proceedings of Florida MAA Section Meeting, 2001
	What's in a Name?, Math Horizons, p. 35, April 2001
	Hinged Dissection of Polyominoes and Polyforms            (with Erik Demaine, Martin Demaine, and David Eppstein),            Proceedings of 11th Canadian Conference on Computational Geometry, 1999
Preprints	Sets of Points that are the Vertices of K Non-overlapping N-gons
	Pearl Puzzles are NP-Complete
	Corral Puzzles are NP-Complete
	Pushing Blocks in Gravity is NP-Hard
	Spiral Galaxies Puzzles are NP-Complete
	New Bounds for Largest Planar Graphs with Fixed Maximum Degree and Diameter            (with Rob Pratt)
Plenary Talks	Two Dozen Unsolved Problems in Planar Geometry,            Embry-Riddle Undergraduate Mathematics Conference, 2004
	Reptiles, Partridges, and Golden Bees: Tiling Shapes with Similar Copies,            MAA meeting, 2003
Other Talks	Tiling Triangular Polyominoes With Two Tiles, Department Seminar, 2006
	Minimal Matchstick Graphs With Small Degree Sets, Department Seminar, 2006
	A Dozen Unsolved Problems in Geometry, Department Seminar, 2003
	Spiral Galaxies Puzzles are NP-Complete, Department Seminar, 2002
	Triangle Centers, MAA meeting, 2002
	Hackenbush: The Simple Truth, QED Seminar, 2001
	Cubic is NP-Complete, MAA meeting, 2001
	Cubic is NP-Complete, Department Seminar, 2000
	New Bounds on Large Regular Planar Graphs, MAA meeting, 2000
	How to Cut a Cake, Department Seminar, 1999
	New Bounds on Large Planar Graphs, Department Seminar, 1999
	Packing Squares, MAA meeting, 1998
	Packing Unit Squares in Squares, Department Seminar, 1997
	The Game of Life, Department Seminar, 1996
	Trapezoidal Numbers, Department Seminar, 1996
	Mathematics and Can Stacking, DeLand High School, 1994, 1996
	The Marksman Problem, Department Seminar, 1995
	Mathematica and Interactive Statistics, MAA/AMS meetings, 1995
	Geometric Dissections, Department Seminar, 1994
	StetStat: An Interactive Statistics Package, ICTCM, 1994
	The Four Color Theorem, Department Seminar, 1994
Courses Taught	Finite Math, Precalculus, Business Calculus, Calculus I, II and III,
	Calculus with Review, Part I, and Part II, Real Analysis I and II, Complex Analysis,
	Probability, Intro to Math & Stat Modeling, Mathematical Statistics, Mathematical Modeling,
	Intro to Game Theory, Game Theory Seminar, Graph Theory, Senior Research
Mini-Courses	Multivariable Calculus Using the Harvard Calculus Consortium Materials, 1995
	Teaching Calculus Using Mathematica, 1993
	Calculus and Mathematica on the Macintosh, 1993
Service	Department Chair, 2000-2003
	Acting Department Chair, Summer 1998-2000, 2005, 2006
	Admissions Committee, 1994-1997, 2000-2003, 2011-present (Chair 1996-1997, 2001-2003)
	Faculty Senate, 1995-1998
	Stetson High School Math Contest Organizer, 1995-1999
	Math/Computer Science Seminar Organizer, 1994-1999
	Mathematical Contest in Modeling Organizer, 1997, 1998
	Putnam Examination Organizer, 1992, 1997, 1999, 2003, 2004, 2006, 2008, 2009
	Faculty Advisor to QED, 1999-2000, 2004-2005, 2006-2009
	Faculty Advisor to Club Bridge, 2001-present
Other Activities	Reviewed note, American Mathematical Monthly, 2006
	Reviewed article, Electronic Journal of Combinatorics, 2005
	Consultant, Volusia County Environmental Health Lab, 2003
	Associate Editor, Encyclopedia of Integer Sequences, 2002
	Editor, Rose-Hulman Insititute of Technology Undergraduate Mathematics Journal, 1999-2009
	Reviewed textbook, Addison Wesley Longman Publishers, 1999
	Field tested Mathematica software as part of NSF grant, 1999
	Reviewed article, Electronic Journal of Combinatorics, 1998
	Statistical Consultant, Volusia County Health Services, 1994-1995
	Mathematical Consultant, Enigmatix Inc., 1994
	Reviewed textbook, John Wiley Publishers, 1994
	Reviewed article, PRIMUS, 1993
Puzzling	Contributed 1 problem to U.S. Puzzle Championship, 2011
	Featured biography in Enigma: 2011
	Featured puzzle layout in World Of Puzzles: Mar 2011
	Published Puzzles in Automation Notebook: Winter 2011
	Published puzzles in World Of Puzzles: Jan 2010, Mar 2010, May 2010, Jul 2010, Sep 2010,            Nov 2010, Jan 2011, Mar 2011, May 2011, Jul 2011, Sep 2011, Nov 2011
	Published puzzles in Games Magazine: Nov 2009, Dec 2009, Feb 2010, Mar 2010, Apr 2010,            May 2010, Jul 2010, Aug 2010, Sep 2010, Oct 2010, Nov 2010, Dec 2010, Feb 2011,            Mar 2011, Apr 2011, Jul 2011, Aug 2011, Sep 2011, Oct 2011, Nov 2011, Dec 2011
	Contributed 2 problems to U.S. Puzzle Championship, 2010
	Contributed 3 problems to U.S. Puzzle Championship, 2009
	Published puzzles in Brain Games: Jan 2008, Jul 2009, Jul 2010, Oct 2010
	Contributed 2 problems to U.S. Puzzle Championship, 2008
	Published puzzles in Bash, 2008
	Contributed 1 problem to U.S. Puzzle Championship, 2007
	Published puzzle in Reader's Digest, Apr 2007
	Published puzzles in Games Magazine: Nov 2006, Apr 2007
	Published 3 puzzles on Perplexcity cards, 2006
	Contributed 4 problems to U.S. Puzzle Championship, 2006
	Contributed 4 problems to U.S. Puzzle Championship, 2005
	Contributed 4 problems to U.S. Puzzle Championship, 2004
	Contributed 3 problems to U.S. Puzzle Championship, 2003
	Contributed 5 problems to U.S. Puzzle Championship, 2002
	Contributed 3 problems to U.S. Puzzle Championship, 2001
	Contributed 18 problems to World Puzzle Championship, 2000
	Contributed 13 problems to U.S. Puzzle Championship, 2000
	Published puzzles in Games Magazine: Nov 1999, Feb 200, Apr 2000, Jun 2000,            Aug 2000, Sep 2000, Feb 2001, Mar 2001, Apr 2001, Aug 2001
	Published puzzles in World of Puzzles: Aug 2000, Sep 2000
	Published puzzles in Pages: Dec 1999, Feb 2000, Apr 2000, Jun 2000, Aug 2000, Oct 2000
	Contributed 3 problems to U.S. Puzzle Championship, 1999
Erdös Number	3

last updated
Sep 15, 2011