4 papers
A Szegö type theorem for truncated Toeplitz operators
Elizabeth Strouse, Dan Timotin, Mohamed Zarrabi
Truncated Toeplitz operators are compressions of multiplication operators on to model spaces (that is, subspaces of which are invariant with respect to the backward shi…
Higher order Journe commutators and characterizations of multi-parameter BMO
Yumeng Ou, Stefanie Petermichl, Elizabeth Strouse
We consider iterated commutators of multiplication by a symbol function and tensor products of Hilbert or Riesz transforms. We establish mixed BMO classes of symbols that character…
Unitary equivalence to truncated Toeplitz operators
Elizabeth Strouse, Dan Timotin, Mohamed Zarrabi
In this paper we investigate operators unitarily equivalent to truncated Toeplitz operators. We show that this class contains certain sums of tensor products of truncated Toeplitz…
Closed ideals of the algebra of absolutely convergent Taylor series
Jean Esterle, Elizabeth Strouse, Fouad Zouakia
Let be the unit circle, the Wiener algebra of continuous functions whose series of Fourier coefficients are absolutely convergent, and the subalgebra of of…