Abel's Test - Abel's Uniform Convergence Test

Abel's Uniform Convergence Test

Abel's uniform convergence test is a criterion for the uniform convergence of a series of functions or an improper integration of functions dependent on parameters. It is related to Abel's test for the convergence of an ordinary series of real numbers, and the proof relies on the same technique of summation by parts.

The test is as follows. Let {gn} be a uniformly bounded sequence of real-valued continuous functions on a set E such that gn+1(x) ≤ gn(x) for all xE and positive integers n, and let {ƒn} be a sequence of real-valued functions such that the series Σƒn(x) converges uniformly on E. Then Σƒn(x)gn(x) converges uniformly on E.

Read more about this topic:  Abel's Test

Famous quotes containing the words uniform and/or test:

    Thus for each blunt-faced ignorant one
    The great grey rigid uniform combined
    Safety with virtue of the sun.
    Thus concepts linked like chainmail in the mind.
    Thom Gunn (b. 1929)

    First follow Nature, and your judgment frame
    By her just standard, which is still the same;
    Unerring Nature, still divinely bright,
    One clear, unchanged, and universal light,
    Life, force, and beauty must to all impart,
    At once the source, and end, and test of art.
    Alexander Pope (1688–1744)