Event № 645
Real interpolation for the coinvariant subspaces of the shift operator on the circle will be discussed in the first part of the talk.
In the second part it will be shown that, given two closed ideals in a uniform algebra such that the complex conjugate of their intersection
is not included in some of them, the sum of these ideals is not closed.
The problem about nonclosed sums of ideals stems from a detail that emerged during the study of interpolation.
This is a joint work with I. Zlotnikov.