Let $f$ be a function and $\mu$ a measure. I saw in Revuz's $\textit{Markov Chains}$ the following notation: $$f \mu$$
What does it mean?
Thank you!
2026-04-22 06:47:14.1776840434
What does it mean $f \mu$, when f is a function and $\mu$ a measure?
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Roughly speaking Radon - Nykodim derivative describes the rate of change of density of one measure with respect to another