Hostname: page-component-848d4c4894-mwx4w Total loading time: 0 Render date: 2024-06-15T22:26:44.742Z Has data issue: false hasContentIssue false

Some Remarks on Uniform Convergence

Published online by Cambridge University Press:  20 January 2009

H. G. Eggleston
Affiliation:
University College, Swansea.
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A useful test for uniform convergence is that first established by Buchanan and Hildebrandt [4] which is as follows.

(A) “If a sequence fn (x) of monotonic functions converges to a continuous function f(x) in [a, b] then this convergence is uniform.”

In §1 of this paper it is shown that this test is included in a sequence of theorems, each of which establishes a type of uniform convergence. The first is a well-known topological theorem on limit sets, the second is a result on the limits of rectifiable arcs, the third is a generalisation of (A) due to Behrend [3], the fourth is (A) itself, the fifth is a one-sided version of Bendixson's test and the sixth is Bendixson's test.

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 1953

References

REFERENCES

[1] Ayer, M. C.On convergence in length,” Proc. Nat. Acad. Sci. U.S.A., 31 (1945), 261266.CrossRefGoogle ScholarPubMed
[2] Ayer, M. C. and Radó, T.A note on convergence in length,” Bull. American Math. Soc., 54 (1948), 533539.CrossRefGoogle Scholar
[3] Behrend, F. A.The uniform convergence of sequences of monotonic functions,” J. Proc. Roy. Soc. New South Wales, 81 (1948), 167168.CrossRefGoogle Scholar
[4] Buchanan, H. E. and Hildebrandt, T. H.Note on the convergence of a sequence of functions of a certain type,” Annals of Math. (2), 9 (1908), 123126.CrossRefGoogle Scholar
[5] Conti, R.Estensione alle successioni di funzioni a variazione limitata di un criterio di Pdlya- Cantelli per la convergenza uniforme suintervalli infiniti,” Atti Accad. Naz. Lincei. Rend. Cl. Sci. Fis. Mat. Nat. (8), 4 (1948), 6165.Google Scholar
[6] Goodstein, R. L.A theorem on uniform convergence,” Math. Gaz., 30 (1946), 287290.CrossRefGoogle Scholar
[7] Marczewski, E. and Nosarzewska, M.Sur la convergence uniformo et la mesurabilite relative,” Colloquium Math., 1 (1947), 1518.CrossRefGoogle Scholar
[8] Pólya, G.Über den zentralen Grenzwertsatz der Wahrscheinlichkeitsrechnung und das Momentenproblem,” Math. Z., 8(1920), 171181.CrossRefGoogle Scholar
[9] Radó, T. and Reichelderfer, P.Convergence in length and convergence in area,” Duke Math. J., 9(1942), 527565.CrossRefGoogle Scholar
[10] Scheffé, H.A useful convergence theorem for probability distributions,” Ann. Math. Statistics, 18 (1947), 434438.CrossRefGoogle Scholar
[11] Tsuji, M.On Tonelli's theorems on a sequence of rectifiable curves,” Japanese J. Math., 14(1941), 401410.Google Scholar