{ "id": "2405.10967", "version": "v1", "published": "2024-05-01T18:55:08.000Z", "updated": "2024-05-01T18:55:08.000Z", "title": "Toeplitz algebra and Symbol map via Berezin transform on $H^2(\\mathbb{D}^n)$", "authors": [ "Mo Javed", "Amit Maji" ], "comment": "Preliminary version, 23 pages", "categories": [ "math.FA", "math.CV", "math.OA" ], "abstract": "Let $\\mathscr{T}(L^{\\infty}(\\mathbb{T}))$ be the Toeplitz algebra, that is, the $C^*$-algebra generated by the set $\\{T_{\\phi} : \\phi\\in L^{\\infty}(\\mathbb{T})\\}$. Douglas's theorem on symbol map states that there exists a $C^*$-algebra homomorphism from $\\mathscr{T}(L^{\\infty}(\\mathbb{T}))$ onto $L^{\\infty}(\\mathbb{T})$ such that $T_{\\phi}\\mapsto \\phi$ and the kernel of the homomorphism coincides with commutator ideal in $\\mathscr{T}(L^{\\infty}(\\mathbb{T}))$. In this paper, we use the Berezin transform to study results akin to Douglas's theorem for operators on the Hardy space $H^2(\\mathbb{D}^n)$ over the open unit polydisc $\\mathbb{D}^n$ for $n\\geq 1$. We further obtain a class of bigger $C^*$-algebras than the Toeplitz algebra $\\mathscr{T}(L^{\\infty}(\\mathbb{T}^n))$ for which the analog of symbol map still holds true.", "revisions": [ { "version": "v1", "updated": "2024-05-01T18:55:08.000Z" } ], "analyses": { "subjects": [ "47B35", "47A13", "32A65" ], "keywords": [ "toeplitz algebra", "berezin transform", "douglass theorem", "symbol map states", "study results akin" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable" } } }