Carl C. Cowen
Professor Emeritus
Professor Emeritus
Prof. Cowen works in areas related to linear operators on Hilbert spaces of analytic functions such as the Hardy and Bergman spaces. Much of this research deals with the classical Toeplitz, composition, and weighted composition operators and the theory of analytic functions connected to these operators. The goal of this research is to connect the operator theoretic structure of operators with the geometric and analytic structure of the functions defining the operator. Cowen's PhD students have worked in operator theory and related linear algebra and theory of analytic functions.
1. Cowen, C. C., An analytic Toeplitz operator that commutes with a compact operator, J. Functional Anal., 36(1980) 169-184.
2. Cowen, C. C., Iteration and the Solution of Functional Equations for Functions Analytic in the Unit Disk, Trans. Amer. Math. Soc., 265(1981) 69-95.
3. Cowen, C. C., Composition operators on H2, J. Operator Theory, 9(1983) 77-106.
4. Cowen, C. C., and MacCluer, B. D., Composition Operators on Spaces of Analytic Functions, CRC Press, Boca Raton, 1995. (xii+388 pages)
5. Cowen, C. C., and MacCluer, B. D., Linear fractional maps of the ball and their composition operators, Acta Sci. Math. (Szeged), 66(2000) 351-376.
6. Cowen, C. C., and MacCluer, B. D., Schroeder's equation in several variables. Taiwanese J. of Mathematics, 7(2003) 129-154.
7. Cowen, C. C., and Gallardo-Gutierrez, E. A., A new class of operators and a description of adjoints of composition operators, J. Functional Anal. 238(2006) 447-462.
8. Cowen, C. C., and Gallardo-Gutierrez, E. A., Unitary equivalence of one-parameter groups of Toeplitz and composition operators, J. Functional Anal. 261(2011) 2641-2655.
9. Cowen, C. C., Gunatillake, G., and Ko, E.I., Hermitian weighted composition operators and Bergman extremal functions. Complex Analysis Operator Theory 7(2013) 69-99.
10. Cowen, C. C., and Gallardo-Gutierrez, E. A., Rota's Universal Operators and Invariant Subspaces in Hilbert Spaces, J. Functional Anal. 271(2016) 1130-1149.