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Questions about extreme points
Published 2 Nov 2022 in math.FA, math.CA, and math.CV | (2211.00853v1)
Abstract: We discuss the geometry of the unit ball -- specifically, the structure of its extreme points (if any) -- in subspaces of $L1$ and $L\infty$ on the circle that are formed by functions with prescribed spectral gaps. A similar issue is considered for kernels of Toeplitz operators in $H\infty$.
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