Ray Rosentrater
Professor of Mathematics
Phone: (805) 565-6185
Email: rosentr@westmont.edu
Office Location: Winter Hall 302
Office Hours
By appointment
Specialization
Operator theory
Professor Rosentrater has taught at Westmont since 1980, and has won the Teacher of the Year Award and the Faculty Research Award. He held a Fulbright fellowship in 1995. He commutes about 10 miles one way by bicylcle almost daily to work.
Professor Rosentrater teaches
- Calculus
- Linear algebra
- Discrete mathematics
- Fundamentals of mathematics
Education
- Ph.D. in Mathematics, Indiana University
- M.Sc. in Computer Science, University of Toronto
- M.S. in Mathematics, Indiana University
- B.A. in Mathematics, Messiah College
Research Interests
- Operator theory
Selected Publications
- "Representational Efficiency." Mathematics Magazine, 64 (2011), 185-195.
- (with Jim Gleason) “Xia’s Analytic Model of a subnormal Operator and its Applications.” Rocky
Mountain Journal of Mathematics. 38:3 (2008), 849-890. - (with Jim Gleason) “The Mosaic and Principal Function of a Subnormal Operator.” Integral Equations
and Operator Theory, 55 (2006), 69-82. - “Another Stick-Breaking Game: Problem 11089.” The American Mathematical Monthly, 113 (2006),
571-572. - “The Sample Correlation Coefficient from a Linear Algebra Perspective.” The College Mathematics
Journal, 36 (2006), 47-50.