Lebesgue Integral - Get Answers to Your Questions

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Discussion Overview

The discussion revolves around questions related to the Lebesgue integral, specifically focusing on the application of series and convergence theorems in the context of integration. Participants are seeking clarification and assistance with the mathematical concepts involved.

Discussion Character

  • Exploratory
  • Mathematical reasoning

Main Points Raised

  • One participant presents a series representation of a function, suggesting it can be used to calculate an integral with proper justification.
  • Another participant requests further explanation regarding the initial claim about the series and its application to the integral.
  • A different participant discusses the convergence of partial sums to the function and raises a question about the applicability of Lebesgue's convergence theorems in exchanging the limit of the series with the integral.

Areas of Agreement / Disagreement

The discussion does not appear to have reached a consensus, as participants are exploring different aspects of the Lebesgue integral and its properties without resolving the questions raised.

Contextual Notes

There may be limitations related to the assumptions required for applying Lebesgue's convergence theorems, as well as the need for justification in the steps taken to exchange limits and integrals.

katreenaa
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Dear all,

Actually, I have question in the attached file about lebesgue integral & I hope to help me please.

thanks in advance,​
 

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\frac{1}{1-e^{bx}}=\sum_{n=0}^{\infty}e^{nbx}

This will allow you to calculate the integral, in a few properly justified steps.
 
Can you explain more please JSuarez?
 
The partial sums of the above series converges monotonically to the function on the right. If you substitute in the in the integral, what do the Lebesgue's convergence theorems tell you about exchanging it with the integral? If that is permissible, you'll have a series with terms that are almost immediate integrals.
 

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