Maximal zero sequences for Fock spaces

preprint2011arXivOpen access

Abstract

A sequence ZZ in the complex plane $\C$ is called a zero sequence for the Fock space FαpF^p_α if there exists a function f∈Fαpf\in F^p_α, not identically zero, such that ZZ is the zero set of ff, counting multiplicities. We show that there exist zero sequences ZZ for FαpF^p_α with the following properties: (1) For any $a\in\C$ the sequence Z∪{a}Z\cup\{a\} is no longer a zero sequence for FαpF^p_α; (2) the space IZI_Z consisting of all functions in FαpF^p_α that vanish on ZZ is one dimensional. These ZZ are naturally called maximal zero sequences for FαpF^p_α.

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