e/Riesz mean

Information
has gloss	eng: In mathematics, the Riesz mean is a certain mean of the terms in a series. They were introduced by Marcel Riesz in 1911 as an improvement over the Cesàro mean. The Riesz mean should not be confused with the Bochner–Riesz mean or the Strong–Riesz mean.
lexicalization	eng: Riesz mean
instance of	(noun) a statistic describing the location of a distribution; "it set the norm for American homes" norm, average