On a relationship between orthogonal projections and Toeplitz operators on poly-Bergman spaces of the upper half-plane: vertical symbols

Fuente: arXiv
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Autores principales: Loaiza, Maribel, Morales-Ramos, Miguel Antonio, Ramírez-Mora, María del Rosario, Ramírez-Ortega, Josué
Formato: Preprint
Publicado: 2026
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author Loaiza, Maribel
Morales-Ramos, Miguel Antonio
Ramírez-Mora, María del Rosario
Ramírez-Ortega, Josué
author_facet Loaiza, Maribel
Morales-Ramos, Miguel Antonio
Ramírez-Mora, María del Rosario
Ramírez-Ortega, Josué
contents In the context of studying $C^*$-algebras generated by Toeplitz operators acting on the poly-Bergman space $\mathcal{A}^2_{n}(Π)$ of the upper half-plane $Π$, we introduce a system of all-but-one orthogonal projections in generic position. We show that the $C^*$-algebra generated by these orthoprojections is closely related to the $C^*$-algebra generated by all Toeplitz operators with vertical symbols satisfying boundary conditions. This result suggests a new approach in the study of Toeplitz operators acting on other reproducing kernel Hilbert spaces. Furthermore, the range of one of the orthoprojections herein has a reproducing kernel expressed in terms of the digamma and the Nielsen's beta functions. The harmonic function also emerges in this development.
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id arxiv_https___arxiv_org_abs_2604_26918
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle On a relationship between orthogonal projections and Toeplitz operators on poly-Bergman spaces of the upper half-plane: vertical symbols
Loaiza, Maribel
Morales-Ramos, Miguel Antonio
Ramírez-Mora, María del Rosario
Ramírez-Ortega, Josué
Operator Algebras
In the context of studying $C^*$-algebras generated by Toeplitz operators acting on the poly-Bergman space $\mathcal{A}^2_{n}(Π)$ of the upper half-plane $Π$, we introduce a system of all-but-one orthogonal projections in generic position. We show that the $C^*$-algebra generated by these orthoprojections is closely related to the $C^*$-algebra generated by all Toeplitz operators with vertical symbols satisfying boundary conditions. This result suggests a new approach in the study of Toeplitz operators acting on other reproducing kernel Hilbert spaces. Furthermore, the range of one of the orthoprojections herein has a reproducing kernel expressed in terms of the digamma and the Nielsen's beta functions. The harmonic function also emerges in this development.
title On a relationship between orthogonal projections and Toeplitz operators on poly-Bergman spaces of the upper half-plane: vertical symbols
topic Operator Algebras
url https://arxiv.org/abs/2604.26918