Ray Rosentrater
Professor of Mathematics
Phone: (805) 565-6185
Email: rosentr@westmont.edu
Office Location: Winter Hall 302
Office Hours
Tues. 1:30 - 3:00
Thurs. 10:30 - 12:00
Fri. 9:30 - 10:25
Or 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.