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Leanne Holder

Associate Professor of Mathematics

Dr. Leanne Holder specializes in finite projective geometry, with research interests in conic blocking sets, sharply focused and hyperfocused arcs, and secret sharing schemes. She has been involved in organizing the Rose-Hulman Undergraduate Mathematics Conference, been master of ceremonies for and currently runs the Indiana MATHCOUNTS Countdown competition, and also advises the campus Racquetball Club.

Teaching Interests

  • Discrete mathematics
  • Combinatorics
  • Calculus

Research Interests

  • Conic blocking sets
  • Sharply focused and Hyperfocused arcs
  • Secret sharing schemes
  • Finite projective geometry

Select Publications & Presentations

  • Cherowitzo, W.E. and Holder, L.D., “Bilinear Flocks,” Journal of Geometry, 105, 3, 625-634, 2014
  • Cherowitzo, W.E. and Holder, L.D., “Blocking Sets of Index Three,” Bulletin of the ICA, 68, 70-78, 2013
  • Cherowitzo, W.E. and Holder, L.D., “Hyperfocused Arcs,” Bulletin of the Belgium Mathematical Society, 12, 685-696, 2005
  • “Conic Blocking Sets in Desarguesian Projective Planes,” Journal of Geometry, 80, 1-2, 95-105, 2004

Academic Degrees

  • PhD, University of Colorado-Denver, 2001
  • MS, University of Colorado-Denver, 1997
  • BS, University of Southern Mississippi, 1994