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Ralph Kelsey

Ralph Kelsey
Assistant Professor of Instruction
Stocker Center 322E

Research Interests: mathematical and computational aspects of the representation of uncertainty in measurements and mathematical models, interval analysis including innovative methods for approximating the solution set for matrix interval equations

All Degrees Earned: Ph.D., Applied Mathematics, Ohio University, 1986; M.S., Physics, Ohio University, 1980; M.S., Mathematics, Ohio University, 1973; B.G.S., Math and Physics, Ohio University, 1971

Journal Article, Academic Journal (5)

  • Kelsey, R., Kreinovich, V. (2021). Computing the United Solution Set to an Interval Linear System is NP-hard --- Even When All Coefficients Are Known with the Same Accuracy. Reliable Computing; 28: 78--84.
  • Turner, ., Ahlquist, ., White, ., Kelsey, R. (1993). Variation in Genome Organization and Composition of Repeated DNA's Among Three Species of Fish. 1. J. Heredity; 84.
  • Turner, T., Ahlquist, J., White, M., Kelsey, R. (1993). Variation in genome organization and composition of repeated DNAs among three species of fish (Family: Percidae). 1. Journal of Heredity; 84: 70–73.
  • Kelsey, R. (1992). Generic soliton properties. Zentrallblatt für Mathematik.
  • Kelsey, R. (1989). Two Determinant Inequalities. SIAM Review.

Conference Proceeding (2)

Published Book Review (2)

  • Kelsey, R., Binney, J., Tremaine, S. (1989). Galactic Dynamics. The Dynamics Newsletter.
  • Kelsey, R., Edelstein-Keshet, L. (1989). Mathematical Models in Biology. The Dynamics Newsletter.