ACTA issues

## Essentially normal composition operators on Bergman spaces

Barbara D. MacCluer, Rachel J. Weir

Acta Sci. Math. (Szeged) 70:3-4(2004), 799-817
5846/2009

 Abstract. We determine which composition operators with linear-fractional symbol are essentially normal on the Bergman spaces $A^2_{\alpha }({\msbm D})$. AMS Subject Classification (1991): 47B33 Received September 24, 2003, and in revised form March 9, 2004. (Registered under 5846/2009.)