Subnormality and composition operators on H2

The Essential Norm of a Composition Operator

Joel H. Shapiro · Annals of Mathematics · 1987 · 439 citations

Natural Sciences, Mechanical Engineering, Norm-referenced Assessment +5

Angular Derivatives and Compact Composition Operators on the Hardy and Bergman Spaces

Barbara D. MacCluer, Joel H. Shapiro · Canadian Journal of Mathematics · 1986 · 272 citations · Full text

Natural Sciences, Literature, Aerodynamics +11

Composition Operators

Eric Nordgren · Canadian Journal of Mathematics · 1968 · 225 citations

Natural Sciences, Mathematics, Algebra +6

Iteration and the solution of functional equations for functions analytic in the unit disk

Carl C. Cowen · Transactions of the American Mathematical Society · 1981 · 174 citations · Full text

Natural Sciences, Mathematics, Discrete Mathematics +11

Linear fractional composition operators on H2

Carl C. Cowen · Integral Equations and Operator Theory · 1988 · 163 citations

Natural Sciences, Mathematics, Physics +6