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ERIC Number: EJ770341
Record Type: Journal
Publication Date: 2002-Jan
Pages: 8
Abstractor: Author
Reference Count: 8
ISBN: N/A
ISSN: ISSN-0020-739X
Uniform Convergence of a Sequence of Functions at a Point
Klippert, J.; Williams, G.
International Journal of Mathematical Education in Science and Technology, v33 n1 p51-58 Jan 2002
It is well known that the uniform limit of a sequence of continuous real-valued functions defined on an interval I is itself continuous. However, if the convergence is pointwise, the limit function need not be continuous (take f[subscript n](x) = x[superscript n] on [0, 1], for example). Boas has shown that the pointwise limit function of a sequence of continuous real-valued functions defined on the compact interval [a, b] is, nonetheless, continuous on a "dense" subset of [a, b]. In this paper, the notion of uniform convergence at a point is offered as an alternative to the Boas approach in establishing this and, consequently, other results. The arguments stay within the realm of a first proof course in classical mathematical analysis.
Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site: http://www.tandf.co.uk/journals/default.html
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: N/A