Understanding the Fat Cantor Set & Proving Its Measure

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SUMMARY

The fat Cantor set is defined by removing less than one-third of the interval at each stage, typically one-fourth, which results in a set with positive Lebesgue measure. Unlike the traditional Cantor set, which has measure zero, the fat Cantor set retains a significant portion of the original interval, thus ensuring it does not contain any intervals. The construction involves a sequence of positive numbers {cn} that dictate the portion removed at each stage, with cn being odd for the fat Cantor set. This method allows for the demonstration of the fat Cantor set's positive measure.

PREREQUISITES
  • Understanding of Lebesgue measure
  • Familiarity with Cantor set construction
  • Knowledge of sequences and series in real analysis
  • Basic concepts of measure theory
NEXT STEPS
  • Research the properties of the Smith-Volterra Cantor set
  • Study Lebesgue measure and its applications in real analysis
  • Explore variations of Cantor sets and their measures
  • Learn about sequences of positive numbers in mathematical analysis
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Mathematicians, students of real analysis, and anyone interested in measure theory and the properties of fractals.

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What is the definition of a fat cantor set? How do I show that the fat cantor set has positive Lebesgue measure and does not contain any interval.

I know for the cantor set that at each stage, we remove the middle third of each interval starting with [0,1]. I am wondering if instead for the fat Cantor set, there is maybe a sequence of positive numbers {cn} and at the stage n, we need to remove the middle cnth of each interval but in this case, should the cn be odd?
I know how to prove that the cantor set has measure 0 and that it contains no interval, but I am not sure how to proceed for the fat cantor set.
 
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Thanks, that is very helpful.
 

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