Wiener-Hopf factorization: the peculiarities of the matrix almost periodic case
- đ¤ Speaker: Ilya Spitkovsky (New York University; College of William and Mary)
- đ Date & Time: Tuesday 13 August 2019, 09:00 - 10:00
- đ Venue: Seminar Room 1, Newton Institute
Abstract
For several classes of functions invertibility and factorability are equivalent; such is the case, e.g., for the Wiener class W or the algebra APW of almost periodic functions with absolutely convergent Bohr-Fourier series. The result for W extends to the matrix setting; not so for APW . Moreover, the factorability criterion even for 2-by-2 triangular matrix functions with APW entries and constant determinant remains a mystery. We will discuss some known results in this direction, and more specific open problems.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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Ilya Spitkovsky (New York University; College of William and Mary)
Tuesday 13 August 2019, 09:00-10:00