RIESZ (F.) — Les découvertes de Riesz ont exercé une influence profonde sur le développement des mathématiques modernes. Il est, en particulier, le principal fondateur de l’analyse fonctionnelle. Ses mémoires excellent autant par la profondeur et la force des … Encyclopédie Universelle
Riesz — may refer to:*Frigyes Riesz, mathematician *Marcel Riesz, mathematician, younger brother of Frigyes Riesz*Riesz, the name of the Amazon warrior and princess of Rolante one of the six playable characters in the video game Seiken Densetsu 3 … Wikipedia
Riesz — [riːs], Frigyes (Frédéric), ungarischer Mathematiker, * Raab 22. 1. 1880, ✝ Budapest 28. 2. 1956; 1912 Professor in Klausenburg, 1920 in Szeged, ab 1946 in Budapest. Riesz lieferte grundlegende Untersuchungen zur Theorie der reellen Funktionen … Universal-Lexikon
Riesz — Riesz, Frigges … Enciclopedia Universal
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 function — In mathematics, the Riesz function is an entire function defined by Marcel Riesz in connection with the Riemann hypothesis, by means of the power series:{ m Riesz}(x) = sum {k=1}^infty frac{( x)^k}{(k 1)! zeta(2k)}If we set F(x) = frac12 { m… … Wikipedia
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 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 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. It is named after Marcel Riesz and his student G. Olof… … Wikipedia
