image
Physics Forums Logo
image
image
* Register * Upgrade Blogs Library Staff Rules Mark Forums Read
image
image   image
image

Go Back   Physics Forums > Mathematics > Number Theory


Reply

image asymptotic expansion Share It Thread Tools Search this Thread image
Old Apr17-09, 05:27 PM                  #1
zetafunction

zetafunction is Offline:
Posts: 143
asymptotic expansion

i had the following idea but i can not prove if this is right or wrong

let be LaTeX Code:  \\sum_{n} a_n exp(-an) \\sim  f(a)

then LaTeX Code:  \\sum _{n \\le x}a_{n} \\sim  g(x)

with the Laplace transform of the derivative g'(x) is equal to f(s=a)

my idea is that if the first condition is true then so is the second.
  Reply With Quote
image image
Reply
Thread Tools


Similar Threads for: asymptotic expansion
Thread Thread Starter Forum Replies Last Post
Asymptotic expansion CHALLENGE!! haywood Calculus & Beyond 0 Sep12-08 03:05 AM
An example regarding asymptotic expansion hanson Differential Equations 1 Mar30-07 01:28 PM
Asymptotic expansion integral Clausius2 Calculus & Analysis 1 Nov29-06 10:28 PM
Asymptotic expansion Clausius2 Differential Equations 2 Jan28-06 07:10 AM
asymptotic expansion makris Calculus & Analysis 0 Nov7-04 11:51 AM

Powered by vBulletin Copyright ©2000 - 2009, Jelsoft Enterprises Ltd. © 2009 Physics Forums
Sciam | physorgPhysorg.com Science News Partner
image
image   image