Professor of Mathematics
Phone: (805) 565-6185
Office Location: Winter Hall 302
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
- Linear algebra
- Discrete mathematics
- Fundamentals of mathematics
- 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
- Operator theory
- Varieties of Integration, Dolciani Mathematical Expositions, Mathematical Association of America, 2015.
- (with Kim Jongerius) “Infinity.” Mathematics Through the Eyes of Faith. Ed. James Bradley and Russell Howell, 2011. 37-63.
- (with Kim Jongerius) “Dimension.” Mathematics Through the Eyes of Faith. Ed. James Bradley and Russell Howell, 2011. 64-92.
- "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),
- “The Sample Correlation Coefficient from a Linear Algebra Perspective.” The College Mathematics
Journal, 36 (2006), 47-50.