Search results with tag "Monotone sequences"
Theorem (The Monotone Convergence Theorem)
www.math.umd.eduHowever in the case of monotone sequences it is. 2. Definitions: • We say {a n} is monotonically (monotone) increasing if ∀n,a n+1 ≥ a n. • We say {a n} is monotonically (monotone) decreasing if ∀n,a n+1 ≤ a n. • A sequence is monotone if it is either. 3. Theorem (The Monotone Convergence Theorem): If {a n} is monotone and ...
Lecture 2 : Convergence of a Sequence, Monotone sequences
home.iitk.ac.inMonotone Sequences De nition : We say that a sequence (x n) is increasing if x n x n+1 for all nand strictly increasing if x n<x n+1 for all n. Similarly, we de ne decreasing and strictly decreasing sequences. Sequences which are either increasing or decreasing are called monotone.
Lecture 2 : Convergence of a Sequence, Monotone sequences
home.iitk.ac.inthe sequence (( 1)n) is a bounded sequence but it does not converge. One naturally asks the following question: Question : Boundedness + (??) )Convergence. We now nd a condition on a bounded sequence which ensures the convergence of the sequence. Monotone Sequences De nition : We say that a sequence (x n) is increasing if x n x
Series - math.ucdavis.edu
www.math.ucdavis.eduA condition for the convergence of series with positive terms follows immedi-ately from the condition for the convergence of monotone sequences. Proposition 4.6. A series P a nwith positive terms a n 0 converges if and only if its partial sums Xn k=1 a k M are bounded from above, otherwise it diverges to 1. Proof. The partial sums S n= P n k=1 a