{ "id": "1606.07379", "version": "v1", "published": "2016-06-23T17:27:53.000Z", "updated": "2016-06-23T17:27:53.000Z", "title": "Separately Radial and Radial Toeplitz Operators on the Projective Space and Representation Theory", "authors": [ "R. Quiroga-Barranco", "A. Sanchez-Nungaray" ], "categories": [ "math.FA" ], "abstract": "We consider separately radial (with corresponding group $\\mathbb{T}^n$) and radial (with corresponding group $\\mathrm{U}(n))$ symbols on the projective space $\\mathbb{P}^n(\\mathbb{C})$, as well as the associated Toeplitz operators on the weighted Bergman spaces. It is known that the $C^*$-algebras generated by each family of such Toeplitz operators are commutative. We present a new representation theoretic proof of such commutativity. Our method is easier and more enlightening as it shows that the commutativity of the $C^*$-algebras is a consequence of the existence of multiplicity-free representations. Furthermore, our method extends the current formulas for the spectra of the corresponding Toeplitz operators to any closed group lying between $\\mathbb{T}^n$ and $\\mathrm{U}(n)$.", "revisions": [ { "version": "v1", "updated": "2016-06-23T17:27:53.000Z" } ], "analyses": { "subjects": [ "47B35", "32A36", "22E46", "32M15" ], "keywords": [ "radial toeplitz operators", "separately radial", "projective space", "representation theory", "corresponding group" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }