2 papers
math.FA2004
Approximation by analytic operator functions. Factorizations and very badly approximable functions
V. V. Peller, S. R. Treil
This is a continuation of our earlier paper \cite{PT3}. We consider here operator-valued functions (or infinite matrix functions) on the unit circle $\T$ and study the problem of a…
math.PR1997
Completely regular multivariate stationary process and the Muckenhoupt condition
Sergei Treil, Alexander Volberg
We give necessary and sufficient conditions for a multivariate stationary stochastic process to be completely regular. We also give the answer to a question of V.V. Peller concerni…