| Orateur(s) | Alexander Pushnitski - King's college London,
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| Titre | Multiplicative Hankel matrices |
| Date | 30/11/2017 |
| Horaire | 10:30 à 11:30 |
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| Diffusion | |
| Résume | A Hankel matrix is a matrix whose (n,m)'th element depends on the sum n+m. A Helson matrix (also known as a multiplicative Hankel matrix) is a matrix whose (n,m)'th element depends on the product nm. I will discuss how such matrices appear naturally in the study of Dirichletseries and consider some examples.I will attempt to compare the well established classical theory ofHankel matrices with the theory of Helson matrices, which is yet in its infancy.This is joint work with Karl-Mikael Perfekt and Nazar Miheisi. |
| Salle | salle 13 - couloir 15-16 - 4ème étage |
| Adresse | Campus Pierre et Marie Curie |
