On critical points of Blaschke products
Favorov, S. · Golinskii, L.
Original · EN
We obtain an upper bound for the derivative of a Blaschke product, whose zeros lie in a certain Stolz-type region. We show that the derivative belongs to the space of analytic functions in the unit disk, introduced recently in FG. As an outcome, we obtain a Blaschke-type condition for critical points of such Blaschke products.
English translation
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