{ "id": "1511.09276", "version": "v1", "published": "2015-11-30T12:43:57.000Z", "updated": "2015-11-30T12:43:57.000Z", "title": "Homomorphisms between algebras of $\\mathcal F$-differentiable functions", "authors": [ "T. Chaobankoh", "J. F. Feinstein", "S. Morley" ], "comment": "12 pages, submitted", "categories": [ "math.FA" ], "abstract": "Let $X$ be a perfect, compact subset of the complex plane, and let $D^{(1)}(X)$ denote the (complex) algebra of continuously complex-differentiable functions on $X$. Then $D^{(1)}(X)$ is a normed algebra of functions but, in some cases, fails to be a Banach function algebra. Bland and the second author investigated the completion of the algebra $D^{(1)}(X)$, for certain sets $X$ and collections $\\mathcal{F}$ of paths in $X$, by considering $\\mathcal{F}$-differentiable functions on $X$. In this paper, we investigate composition, the chain rule, and the quotient rule for this notion of differentiability. We also investigate homomorphisms between certain algebras of $\\mathcal{F}$-differentiable functions.", "revisions": [ { "version": "v1", "updated": "2015-11-30T12:43:57.000Z" } ], "analyses": { "subjects": [ "46J10", "46J15", "46E25" ], "keywords": [ "homomorphisms", "banach function algebra", "complex plane", "compact subset", "second author" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv151109276C" } } }