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SUMMARY:Exterior products of operators and superoptimal analytic approxima
tion
DTSTART;VALUE=DATE-TIME:20220128T095000Z
DTEND;VALUE=DATE-TIME:20220128T102000Z
DTSTAMP;VALUE=DATE-TIME:20220121T022040Z
UID:indico-event-860@indico.eimi.ru
DESCRIPTION:For a given matrix-valued function G\, which is expressible as
the sum of a bounded analytic matrix-valued function on the unit disc D a
nd a continuous matrix-valued function on the unit circle T\, we present a
n algorithm that yields the superoptimal approximant AG of G. The algorith
m employs operator theoretic results on exterior powers of Hilbert spaces
along with the compactness of certain Hankel-type operators. The talk is b
ased on joint work with Z.A. Lykova and N.J. Young.\n\nhttps://indico.eimi
.ru/event/860/
LOCATION:SPbU Math & CS Dept 201
URL:https://indico.eimi.ru/event/860/
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