Middle East Technical University General Seminars
On a tensor product C*-algebra acting on the Hardy space of the bi-disc with applications to composition operators
Uğur Gül
Hacettepe University, Turkey
Özet :
In this talk we will be concerned with a tensor product C*-algebra generated by Toeplitz operators with QC(quasi-continuous) symbols and Fourier multipliers acting on the Hardy space of the bi-disc. An exact characteriztion of Fredholmness of certain linear algebraic combination of Toeplitz operators and Fourier multipliers will be given. As an application, an exact characterization of the essential spectrum of a "quasi-parabolic" composition operator acting on the Hardy space of the bi-disc will be given. This is the result of a joint work with B.B. Koca of Istanbul University.
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Tarih |
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21.03.2019 |
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Saat |
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15:40 |
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Yer |
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Gündüz İkeda Seminar Room |
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Dil |
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English |