Weak limit of abs. continuous measures

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SUMMARY

The discussion centers on the convergence of a sequence of probability measures on R that are absolutely continuous with respect to the Lebesgue measure. It is established that these measures can converge weakly to a measure that is not absolutely continuous with respect to the Lebesgue measure. A specific example provided is the normal distribution as its variance approaches zero, illustrating this phenomenon clearly.

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  • Understanding of weak convergence in probability theory
  • Knowledge of absolute continuity in measure theory
  • Familiarity with Lebesgue measure
  • Concept of normal distribution and its properties
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  • Study weak convergence of measures in detail
  • Explore absolute continuity and its implications in measure theory
  • Investigate the properties of the normal distribution as variance changes
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Mathematicians, statisticians, and graduate students specializing in probability theory and measure theory who are interested in the nuances of measure convergence.

tom85
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say we have a sequence of probability measures on R, such that each one is abs. continuous wrt the Lebesgue measure...

is it possible that these measures converge weakly to a measure which is _not_ abs. continuous wrt the Lebesgue measure?
 
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yes, e.g. normal distribution as variance goes to zero.
 

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