Lebesgue Measurability of Translated Sets?

  • Context: Graduate 
  • Thread starter Thread starter To0ta
  • Start date Start date
  • Tags Tags
    Measurable
Click For Summary
SUMMARY

The discussion focuses on the Lebesgue measurability of translated sets, specifically proving that if a set E is Lebesgue measurable, then the translated set E+a is also Lebesgue measurable. The approach suggested involves defining a collection of sets, denoted as \mathcal{A}, which includes all subsets of R for which the translated set E+a remains measurable. The goal is to demonstrate that \mathcal{A} forms a σ-algebra that contains open intervals, thereby establishing the measurability of translated sets.

PREREQUISITES
  • Understanding of Lebesgue measurability
  • Familiarity with σ-algebras in measure theory
  • Basic knowledge of real analysis and subsets of R
  • Proficiency in mathematical notation and proofs
NEXT STEPS
  • Study the properties of Lebesgue measurable sets
  • Learn about σ-algebras and their significance in measure theory
  • Explore the concept of translations in the context of measurable sets
  • Investigate examples of measurable and non-measurable sets in R
USEFUL FOR

Mathematicians, students of real analysis, and anyone studying measure theory who seeks to understand the properties of Lebesgue measurable sets and their translations.

To0ta
Messages
6
Reaction score
0
hello

let E,F be subset of R and a in R . show that

If E is Lebesgue measurable, then E+a is Lebesgue measurable ?
 
Physics news on Phys.org
Hmmm, I think this actually belongs in the homework section...

What have you been trying already?
 
Well, what I would try is considering the following

\mathcal{A}=\{E\subseteq \mathbb{R}~\vert~E+a~\text{is Lebesgue measurable}\}

and now you only need to show that this is a \sigma-algebra that contains the open intervals...
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 14 ·
Replies
14
Views
3K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 16 ·
Replies
16
Views
2K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 5 ·
Replies
5
Views
3K