e/Aleksandrov–Clark measure

Information
has gloss	eng: In mathematics, Aleksandrov–Clark (AC) measures are specially constructed measures named after the two mathematicians, A. B. Aleksandrov and Douglas Clark, who discovered some of their deepest properties. The measures are also called either Aleksandrov measures, Clark measures, or occasionally spectral measures.
lexicalization	eng: Aleksandrov-Clark measure
lexicalization	eng: Aleksandrov–Clark measure
instance of	c/Hardy spaces