Charles Cusack
Associate Professor
Department of Computer Science
Hope College

Lecture Notes


  1. C. A. Cusack, A. Green*, M. Powers*, A. Bekmetjev, “Graph Pebbling Algorithms and Lemke Graphs,” Discrete Applied Mathematics, 262, 72-82, 2019. PDF
  2. C. A. Cusack, M. Powers*, A. Bekmetjev, “Two-pebbling and odd-two-pebbling are not equivalent,” Discrete Mathematics, 342 (3), 777-783, 2019. PDF
  3. C. A. Cusack, M. Powers*, A. Bekmetjev, “Doppelgangers and Lemke graphs,” Discrete Mathematics, 341(10), 2686-2693, 2018. PDF
  4. Timothy Lewis, C.A. Cusack, Lisa Dion, "The complexity of pebbling reachability and solvability in planar and outerplanar graphs," Discrete Applied Mathematics, 172, 62-74, 2014. PDF
  5. C.A. Cusack, S.P. Edwards, D.B. Parker, "Multidesigns of Complete Graphs for Graph-Triples of Order 6," Journal of Combinatorial Mathematics and Combinatorial Computing, to appear. PDF
  6. C.A. Cusack, T. Lewis, D. Simpson, S. Taggart "The Complexity of Pebbling in Diameter Two Graphs," SIAM J. Discrete Math., 26(3), 919-928, 2012. PDF
  7. Charles Cusack, Jeff Largent, Ryan Alfuth, Kim Klask, "Online Games as Social-Computational Systems for Solving NP-complete Problems", Proceedings of Meaningful Play 2010, East Lansing, MI, October 21-23, 2010. PDF
  8. R. L. McFall, C.A. Cusack, "Ray Tracing as an Object-Oriented Example for CS 1," The Journal of Computing Sciences in Colleges 26(1), 77-84, 2010.
  9. C.A. Cusack, A. Bekmetjev, "Pebbling Algorithms in Diameter Two Graphs," SIAM J. Discrete Math., 23(2), 634-646, 2009. PDF
  10. C.A. Cusack, E. Peck, M. Riolo, "Volunteer Computing Games: Merging Online Casual Gaming with Volunteer Computing," Proceedings of the International Academic Conference on Meaningful Play, East Lansing, MI, October 9-11, 2008. PDF
  11. Charles Cusack, Chris Martens, Priyanshu Mutreja, "Volunteer Computing Using Casual Games," presented at Future Play 2006 International Conference on the Future of Game Design and Technology, London, Ontario, Canada, Oct 10-12, 2006. Published in Conference Proceedings. PDF
  12. Charles Cusack and Gretchen Foley, ``T3RevEng: Computer-Assisted Analysis of Music in Perle’s System of Twelve-Tone Tonality'', Computer Music Journal, 30 (2006) No 3, pp. 53-66. PDF
  13. C.A. Cusack, S.M. Magliveras, ``Semiregular Large Sets'', Designs, Codes, and Cryptography, 18 (1999) 81-87.
  14. C.A. Cusack, S.W. Graham, and D.L. Kreher, ``Large Sets of 3-Designs from PSL(2,q) with Block Sizes 4 and 5,'' The Journal of Combinatorial Designs, 3 (1995) No 2 147-160.
  15. C.J. Colbourn, C.A. Cusack, and D.L. Kreher, ``Partial Steiner Triple Systems with Equal-Sized Holes,'' The Journal of Combinatorial Theory Series A, 70 (1995) No 7 56-65.

Unpublished Papers: