We will answer the following question:

[Q.] Let be a sequence of regular Borel measures on a set , which converges to a measure on in weak-star. Is it possible to show that converges to in weak-star?

Recall the definition of weak-star convergence first in this context. Since the dual space of is the Borel regular measures on (see the Appendix C of book [Conway 1990, A course in functional analysis]), is convergent to in weak-star, if

[A.] The answer is NO. Let , and , where is the dirac measure. Note that converge to zero measure in weak-star, but converge to . In particular, the limit of total variation of the sequence is not equal to total variation of the limit measure, i.e. .

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