Calendar

Oct
6
Fri
Colloquium: Pamela Harris (Williams)
Oct 6 @ 3:30 pm – 4:30 pm
Oct
10
Tue
Topology Qualifying Exam
Oct 10 @ 9:00 am – 1:00 pm

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Analysis Seminar : Austin Anderson (Kapi’olani Community College) @ Keller 402
Oct 10 @ 3:30 pm – 4:30 pm

Title: Composition semigroups on spaces of analytic functions

Abstract : A semigroup {phi_t}_{t geq 0} of analytic self-maps of the disk satisifies phi_t circ phi_s = phi_{t+s}, and induces a semigroup of composition operators. We study the maximal space of strong continuity when the composition operators act on spaces of analytic functions, particularly H^{infty}, BMOA, and the Bloch space. We show that not every composition semigroup is strongly continuous on BMOA, answering a question that had remained open in the literature since at least 1998. This is joint work with Wayne Smith and Mirjana Jovovic.

Oct
12
Thu
Logic Seminar: Borel Determinacy II (Khan) @ Keller 402
Oct 12 @ 2:55 pm – 3:55 pm
Oct
17
Tue
Analysis Qualifying Exam
Oct 17 @ 9:00 am – 1:00 pm

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Oct
18
Wed
Number Theory Seminar: Michelle Manes @ Keller 301
Oct 18 @ 2:30 pm – 3:30 pm

Speaker: Michelle Manes

Oct
19
Thu
Logic Seminar: Borel Determinacy III (Yoon) @ Keller 402
Oct 19 @ 2:55 pm – 3:55 pm
Oct
20
Fri
Talk Story: Bjørn Kjos-Hanssen @ Keller 401
Oct 20 @ 3:30 pm – 4:30 pm