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Jan 8, 2021 at 12:59 comment added Adriano @Dirk Yes, exactly. But I am mainly interested in references about operators from type $A$ (closedness, weak*-closedness, etc.) and maybe about results like weak*-density for its domain.
Jan 8, 2021 at 12:52 comment added Dirk If I see correctly, your $M^1[a,b]$ is exactly $BV[a,b]$ where you interpret the functions in $BV$ as measures by multiplying them with the Lebesgue measure.
Jan 8, 2021 at 12:48 comment added Daniele Tampieri Perhaps reading this Q&A would be somewhat useful: it describes an old result of of Ivan Petrovskii and Renato Caccioppoli identifying conditions for which $$h(x)=\int\limits_a^x f(t)\mathrm{d}g(t) \quad f,g\in C^0$$ exists, without necessarily requiring $f\in BV$ or $g\in BV$.
Jan 8, 2021 at 10:54 history edited Adriano CC BY-SA 4.0
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Jan 8, 2021 at 10:53 comment added Adriano You are right! I edited my question, accordingly.
Jan 8, 2021 at 10:53 history undeleted Adriano
Jan 7, 2021 at 15:42 history deleted Adriano via Vote
Jan 7, 2021 at 14:52 comment added Dirk if $f$ is just of bounded variation, then $f'$ is a measure and hence, its not clear to me how to multiply $f'$ with the Lebesgue measure. Put differently: What do you hope to get for $A\mu$ when $f$ is the Heaviside function?
Jan 7, 2021 at 13:14 history edited YCor CC BY-SA 4.0
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Jan 7, 2021 at 12:50 history asked Adriano CC BY-SA 4.0