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 x ∈ E 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:
“We know, Mr. Wellerwe, who are men of the worldthat a good uniform must work its way with the women, sooner or later.”
—Charles Dickens (18121870)
“The test of an adventure is that when youre in the middle of it, you say to yourself, Oh, now Ive got myself into an awful mess; I wish I were sitting quietly at home. And the sign that somethings wrong with you is when you sit quietly at home wishing you were out having lots of adventure.”
—Thornton Wilder (18971975)