Can an Analytic Expression be Found for this Infinite Series with x>1?

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Discussion Overview

The discussion revolves around finding an analytic expression for the infinite series \(\sum_{n=0}^{+\infty} \frac{1}{1+x^n}\) where \(x > 1\). The scope includes mathematical reasoning and exploration of potential solutions.

Discussion Character

  • Exploratory
  • Mathematical reasoning
  • Debate/contested

Main Points Raised

  • The original poster expresses uncertainty about obtaining an analytic expression for the series.
  • One participant suggests an empirical fit \(S=1/2+1/([x^{1.2}]-1)\) but acknowledges its potential lack of utility.
  • Another participant humorously calls for a knowledgeable member to contribute to the discussion.
  • There is a light-hearted exchange regarding the tone of previous comments, with participants clarifying intentions and expressing camaraderie.
  • A participant questions the mathematical level of the problem and whether it has a solution, mentioning hypergeometric series but later dismissing that approach due to encountering nested series.
  • Another participant expresses concern that the original poster may have found the question unsolvable, given their lack of further contributions.

Areas of Agreement / Disagreement

Participants do not reach a consensus on whether an analytic solution exists for the series. There are multiple competing views and uncertainties regarding the approach to take.

Contextual Notes

Some participants mention specific mathematical concepts like hypergeometric series and nested series, but the applicability of these concepts to the original problem remains unresolved.

godistring
I don't know how to get a analytic expression of this infinite series:
[tex]\sum_{n=0}^{+\infty} \frac{1}{1+x^n}[/tex]
here [tex]x>1[/tex].

Thanks!
 
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Probably completely useless- but

S=1/2+1/([x^1.2]-1)

gives an empirically reasonable fit
 
Get that smart *** Gib Z to have a go.
 
lol what did I do >.< I can't tell if that's derogatory or a compliment..
 
Gib Z said:
lol what did I do >.< I can't tell if that's derogatory or a compliment..

The 'smart' bit is a compliment, the *** bit- not so much.
 
lol but as a whole? Did I say something mean? If so I am sorry >.<
 
Gib Z said:
lol but as a whole? Did I say something mean? If so I am sorry >.<

It's all a compliment! Just in a snarky way. Don't worry- I just express myself sarcastically. I thought you might know the answer to the above math problem. Sorry if I worried you!
 
Lol its alright, Just trust me I'm working on it as i type. Looks familiar :)
 
Ok I stuck here lol. What level of mathematics did you get this question from, and are you sure it even has a solution?

Have you done Hyper geometric series yet?

EDIT: Forget the hypergeometric series, all I get is nested series.
 
Last edited:
  • #10
Please some Admins or someone better at math than me, help me! Seeing as the OP hasn't come back yet and has only 1 post, maybe this person found out the question has no solution...
 

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