16 citations · 33 across the 11 of their papers we have counts for
4 papers · 1 filter
Numerical ranges of contractions
Chafiq Benhida, Pamela Gorkin, Dan Timotin
A conjecture of Halmos proved by Choi and Li states that the closure of the numerical range of a contraction on a Hilbert space is the intersection of the closure of the numerical…
Pervasive Algebras and Maximal Subalgebras
Pamela Gorkin, Anthony G. O'Farrell
A uniform algebra on its Shilov boundary is {\em maximal} if is not and there is no uniform algebra properly contained between and . It is {\em essenti…
Orbits of non-elliptic disc automorphisms
Eva A. Gallardo-Gutiérrez, Pamela Gorkin, Daniel Suárez
Motivated by the Invariant Subspace Problem, we describe explicitly the closed subspace generated by the limit points in the norm of the orbit of a thin Blaschke produc…
Approximation by polynomials and Blaschke products having all zeros on a circle
David W. Farmer, Pamela Gorkin
We show that a nonvanishing analytic function on a domain in the unit disc can be approximated by (a scalar multiple of) a Blaschke product whose zeros lie on a prescribed circle e…