Article ID Journal Published Year Pages File Type
6418625 Journal of Mathematical Analysis and Applications 2013 5 Pages PDF
Abstract

We characterize generalized bi-circular projections on the Hardy space of the torus and show that they can be represented as the average of the identity and an isometric reflection. We also show that the average of two distinct isometries on the Hardy space of the disk is a projection if and only if it is a generalized bi-circular projection.

Related Topics
Physical Sciences and Engineering Mathematics Analysis
Authors
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