Interpolation in Spaces of Analytic Functions / Interpolation dans les espaces de fonctions analytiques

Collection Interpolation in Spaces of Analytic Functions / Interpolation dans les espaces de fonctions analytiques

The goal of this conference is to gather people interested in holomorphic interpolation and related subjects, including sampling theory, uniqueness problems, and reproducing kernel Hilbert spaces. Related results and methods from this area of research play a fundamental role in different branches of modern analysis. For example, Carleson’s well-known characterization of interpolating sequences in the algebra of bounded analytic functions in the unit disk and the subsequent solution of the corona problem were groundbreaking results and continue to generate activity in analysis.

In the Hilbertian situation, interpolation, uniqueness, and sampling translate to geometric properties of reproducing kernels. After orthonormal sequences, Riesz sequences of such kernels (which are related to interpolation) represent the second best family one can expect in a Hilbert space. Riesz sequences, and their complete counterpart, Riesz bases, are fundamental elements contributing not only to a better understanding of the underlying Hilbert spaces, but playing a central role in operator theory and its applications, such as signal processing, mathematical physics, and machine learning. We are particularly interested in the use of Riesz bases in control theory. We also note that in the last decade spectacular progress was made when a number of longstanding open problems were solved (e.g., the Kadison-Singer conjecture and the completeness problem for biorthogonal exponentials).


Organizer(s) Fricain, Emmanuel ; Hartmann, Andreas ; Wick, Brett
Date(s) 18/11/2019 - 22/11/2019
linked URL https://conferences.cirm-math.fr/2055.html
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