example of function not Lebesgue Measurable with measurable level sets
f(x)={xifx∉V2+xifx∈V |
The level sets of f will either be the empty set, or a singleton and thus measurable.
f-1({x})={{x}if 0≤x≤1∧x∉V{2-x}if 2≤x≤3∧x-2∈V{}otherwise |
f is not a measurable function since f-1([2,+∞[)=V and V is not a measurable set
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Title | example of function not Lebesgue Measurable with measurable level sets |
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Canonical name | ExampleOfFunctionNotLebesgueMeasurableWithMeasurableLevelSets |
Date of creation | 2013-03-22 15:51:22 |
Last modified on | 2013-03-22 15:51:22 |
Owner | cvalente (11260) |
Last modified by | cvalente (11260) |
Numerical id | 7 |
Author | cvalente (11260) |
Entry type | Example |
Classification | msc 28B15 |
Related topic | measurableFunctions |
Related topic | VitalisTheorem |
Related topic | MeasurableFunctions |