Leonel Robert Fields Institute 222 College Street, Toronto Ontario, M5T 3J1, Canada Phone: 416-348-9710 ext. 4036, Fax: 416-348-9385 email: lrobert at fields dot toronto dot edu

I am a visitor at the Fields Institute. My research is supported by an NSERC PDF.

My research interests include operator algebras, the classification of C*-algebras using their traces and K-theory, the Cuntz semigroup, Hilbert C*-modules.

This is my Curriculum Vitae.

Preprints and publications

1. On the traces of a C*-algebra, with George Elliott and Luis Santiago, in preparation (2007).
2. Perturbations of the shift by rank one operators, with Franklin Vera, submitted (2007).
3. The Cuntz semigroup of some spaces of dimension at most 2, preprint (2007). arXiv:0711.4396v2
4. The Cuntz semigroup of ideals and quotients and a generalized Kasparov Stabilization Theorem, with Alin Ciuperca and Luis Santiago, accepted by the Journal of Operator Theory (2007). arXiv:0710.5800.v1
5. Expanding maps of the circle revisited: Positive Lyapunov exponents in a rich family, with Enrique Pujals and Michael Shub, Ergodic Theory and Dynamical Systems, Vol. 26 (2006), 1931--1937. pdf
6. Infinite dimensional continued fractions, with Luis Santiago, preprint. pdf
7. Similarity of perturbations of Hessenberg matrices, Journal of Operator Theory, Vol. 54 (2005), n. 1: 125--136. pdf
8. Figures of constant width on a chessboard, with Janko Hernandez, American Mathematical Monthly, Jan. 2005. pdf
9. On a class of Sobolev scalar products in the polynomials, with Luis Santiago, Journal of Approximation Theory 125(2): 169-189 (2003). pdf
10. The Finite sections method for Hessenberg matrices, with Luis Santiago, Journal of Approximation Theory 123(1): 68-88 (2003). pdf

Apples and oranges

Figures of constant width on a chessboard

The function that never was

University of Toronto photos