Riesz space — /rees/, Math. a topological space in which sets containing one point are closed. [after Frigyes Riesz (1880 1956), Hungarian mathematician] * * * … Universalium
Riesz space — /rees/, Math. a topological space in which sets containing one point are closed. [after Frigyes Riesz (1880 1956), Hungarian mathematician] … Useful english dictionary
Riesz-Raum — Ein Riesz Raum ist ein Vektorraum mit einer Verbandsstruktur, die so beschaffen ist, dass sich die lineare und die Verbandsstruktur vertragen. Im Jahr 1928 wurde dieser Raum von Frigyes Riesz definiert[1] und trägt deshalb heute seinen Namen.… … Deutsch Wikipedia
Riesz's lemma — is an lemma in functional analysis. It specifies (often easy to check) conditions which guarantee that a subspace in a normed linear space is dense. The result Before stating the result, we fix some notation. Let X be a normed linear space with… … Wikipedia
Riesz representation theorem — There are several well known theorems in functional analysis known as the Riesz representation theorem. They are named in honour of Frigyes Riesz. The Hilbert space representation theorem This theorem establishes an important connection between a … Wikipedia
Riesz–Thorin theorem — In mathematics, the Riesz–Thorin theorem, often referred to as the Riesz–Thorin interpolation theorem or the Riesz–Thorin convexity theorem is a result about interpolation of operators. It is named after Marcel Riesz and his student G. Olof… … Wikipedia
Riesz–Fischer theorem — In mathematics, the Riesz–Fischer theorem in real analysis refers to a number of closely related results concerning the properties of the space L2 of square integrable functions. The theorem was proven independently in 1907 by Frigyes Riesz and… … Wikipedia
Riesz sequence — In mathematics, a sequence of vectors ( x n ) in a Hilbert space ( H , lang; , rang;) is called a Riesz sequence if there exist constants 0 … Wikipedia
Riesz transform — In the mathematical theory of harmonic analysis, the Riesz transforms are a family of generalizations of the Hilbert transform to Euclidean spaces of dimension d > 1. They are a type of singular integral operator, meaning that they are given by a … Wikipedia
Riesz-Thorin theorem — In mathematics, the Riesz Thorin theorem, often referred to as the Riesz Thorin Interpolation Theorem or the Riesz Thorin Convexity Theorem is a result about interpolation of operators . This should not be confused with somewhat different… … Wikipedia
