Education

• Ph.D. Mathematics, University of Wisconsin - Madison, 1975
  Thesis: "Disjoint Circles: The Classification of Translation Planes in Terms of Sets of Disjoint Circles in Finite Miquelian Inversive Planes"
  Advisor: R. H. Bruck
• M.A. Mathematics, University of Wisconsin - Madison, 1971
  
• B.S. Mathematics, University of Wisconsin - Madison, 1969

Employment

• Professor, Mathematical Sciences Department, University of Delaware, 1987-present
  
• Visiting Professor, Adelaide University, Spring 2005
  
• Visiting Professor, Auburn University, 1990-1991
  
• Associate Professor, University of Delaware, 1981-1987
  
• Visiting Professor, University of Western Ontario (Canada), 1983-1984
  
• Assistant Professor, University of Delaware, 1977-1981
  
• Visiting Lecturer, Texas Tech University, 1975-1977
  
• Teaching Assistant, University of Wisconsin - Madison, 1970-1975
  
• Mathematical Programmer, Chevrolet Engineering Center, Warren, MI, 1969-1970

Research Interests

Recent Invited Addresses

• "Andre Mixed Partitions"
  Regional Meeting - Italian Finite Geometry Research Group
  Caserta, Italy, February 2007
• "Hyperbolic Fibrations"
  Combinatorics 2006
  Ischia, Italy, June 2006
• "Quasimultiples of Geometric Designs"
  Colloquiums at Beijing Jiaotong University and Shanghai Jaio Tong University
  China, June 2005
• "Translation Ovoids of the Hermitain Surface and Related Objects"
  Adelaide Workshop on Incidence Geometry
  Adelaide University, Adelaide, Australia, February 2005
  University of Western Australia Colloquium
  Perth, Australia, April 2005
• "Shult Sets and Translation Ovoids of the Hermitian Surface"
  Colloquiums at University of Rome, University of Naples, and University of Modena
  Italy, Fall 2004
• "Higher Dimensional Circle Geometries and Subregular Translation Planes"
  International Conference on Incidence Geometry
  La Roche - en - Ardennes, May 2004
• "Partial Ovoids of the Hermitian Surface"
  Adelaide Workshop on Incidence Geometry
  Adelaide University, Adelaide, Australia, December 2003
• "Partial Ovoids and Spans of the Hermitian Surface"
  University of Iowa Colloquium
  Iowa City, Iowa, November 2003
• "Odd Order Flag-Transitive Affine Planes"
  First Irsee Conference on Finite Geometries
  Irsee, Germany, February 2003
• "A Gentle Introduction to Hermitian Curves and Surfaces"
  Michigan Tech University Colloquium
  Houghton, Michigan, January 2003
• "Flocks of a Quadratic Cone and Hyperbolic Fibrations"
  Geometric and Algebraic Combinatorics II
  Oisterwijk, The Netherlands, August 2002
• "Binary Codes of Buekenhout-Metz Unitals of Odd Order"
  Oberwolfach Meeting on Finite Geometries
  Oberwolfach, Germany, December 2001
• "Hyperbolic Fibrations and q-Clans"
  Joint UC-Denver/Wyoming/Colorado State Seminar
  Fort Collins, CO, October 2000
• "Baer Subgeometry Partitions"
  Second Pythagorean Conference
  Samos, Greece, June 1999
• "Partitioning Problems and Flag-Transitive Planes"
  Combinatorics '98
  Palermo, Italy, June 1998
• "Caps, Codes, and Partitions"
  Eighth Auburn Combinatorial Conference
  Auburn University, Auburn, AL, March 1997
• "Buekenhout Unitals"
  Combinatorics '96 - in honour of Guisseppe Tallini
  Assisi, Italy, September 1996
• "A Survey of Buekenhout-Metz Unitals"
  Eighth SIAM Conference on Discrete Mathematics
  Johns Hopkins University, Baltimore, MD, June 1996
• "Replaceable Nests"
  TEDFEST '96 - a celebration of T. G. Ostrom's eightieth birthday
  University of Iowa, Iowa City, IA, March 1996
• "Buekenhout-Metz Unitals"
  series of 8 lectures at the Summer School on Finite Geometries
  Universita degli Studi della Basilicata, Potenza, Italy, June 1996

Ph.D. Students

• Craig Culbert, returning student -sixth year
• Marina Capursi (2006), University of Central Florida, Orlando, FL
• Keith Mellinger (2001), Mary Washington College, Fredericksburg, VA
• Jeremy Dover (1996), White Cliffs Consulting
• Kenny Wantz (1995), Southern Nazerene University, Oklahoma City, OK
• Richard Weida (1987), Lycoming College, Williamsport, PA

Grants

• National Security Agency, H98230-06-1-0071, 2005-2007
  "Ovoids and Spreads in Polar and Projective Spaces"
• National Security Agency, MDA904-03-1-0099, 2002-2004
  "Problems in Fnite Geometry"
• National Security Agency, MDA904-00-1-0029, 1999-2001
  "Partitioning Problems in Finite Geometry and their Applications"
• North Atlantic Treaty Organization, SA.5-2-05(CRG.970185), 1997-1999
  "Geometrical Configurations and their Symmetries"
  joint with G. Korchmaros (Potenza, Italy) and J.W.P. Hirschfeld (Brighton, England)
• National Security Agency, MDA904-94-H-2033, 1993-1995
  "Conics and Unitals in Finite Desarguesian Planes"
• National Science Foundation, DMS-8804569, 1988-1989
  "Mathematical Sciences: Research Equipment"
  joint with R.D. Baker, R.P. Gilbert, J. Hemmeter, and P.B. Monk
• Alfred P. Sloan Foundation, 1983
  "Delaware Revision in Undergraduate Mathematics"
  joint with R.D. Baker and I. Stakgold
• University of Delaware Research Foundation, 1978-1979
  "Blocking Sets and Partial Spreads in Projective Spaces"

Books

• Discrete Mathematics , R.D. Baker and G.L. Ebert
  Kendall/Hunt Publishing Company, Dubuque, IA

Memberships

• American Mathematical Society
  
• Mathematical Association of American
  
• Phi Beta Kappa

Editorships

• Innovations in Incidence Geometry

Publications

Research in Progress

• Unitals
  monograph being jointly written with Sue Barwick
• Characterizations of flag-transtive planes,
  ongoing research
• Geometric characterizations of Buekenhout-Metz unitals,
  ongoing research
• Contruction of finite semifields,
  ongoing research