I am an Associate Professor in the Mathematics Department at Cal Poly, San Luis Obispo.  My office is #308 in Faculty Offices East, Bldg. 25.  I am the faculty advisor to KME. I was recently the director of our REU program at Cal Poly.  Now, Joe Borzellino is the director.  Click here for photos from the 2001, the 2002, 2003, 2005 or 2006 program. Spring 2008:  I am on sabbatical.

Click here to see my various photo galleries.

1. Norms of Composition Operators with Rational Symbol (with Sean Effinger-Dean, Alan Johnson, and Joseph Reed)
This paper appears in the Journal of Mathematical Analysis and Applications, 324 (2006) 1062-1072.
You can see it on their web site (subscription may be necessary) here.
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2. Continuity of the Norm of a Composition Operator (with David Pokorny)
This paper appears in the journal Integral Equations and Operator Theory, Volume 45, Issue 3, March 2003, pp 351-358.
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3. Strict Convexity of Some Subsets of Hankel Operators (with Caixing Gu)
This paper appears in the Proceedings of the American Mathematical Society, Volume 131, Number 9 (2003), 2779-2789.
You can see it on their web site here.
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4. Kernels of Hankel Operators and Hyponormality of Toeplitz Operators (with Caixing Gu)
This paper appears in Mathematische Annalen, Volume 319 Issue 3 (2001) pp 553-571.
You can see it on their web site here .
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5. The Essential Norm of a Composition Operator on a Planar Domain (with Stephen D. Fisher)
This paper appears in the Illinois Journal of Mathematics, 43 (1999), 113-130.
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6. Aleksandrov Measures Used in Essential Norm Inequalities for Composition Operators
This paper appears in the Journal of Operator Theory, 40 (1998), 133-146.
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7. Singular Factors are Rare (with Stephen D. Fisher)
This paper appears in the Michigan Mathematical Journal, 44 (1997), 231-237.
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8. Relative Angular Derivatives
This paper appears in the Journal of Operator Theory, 46 (2001), 265-280.
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9. More Relative Angular Derivatives
This paper appears in the Journal of Operator Theory, 49 (2003), 85-97.
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Drop by, e-mail me, or call me at  my office phone: (75)6-1675 with any questions or to make an appointment.