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Displaying 41 – 60 of 138

Dérivation de mesures à valeurs vectorielles

Maurice Sion (1974/1975)

Séminaire Choquet. Initiation à l'analyse

Dérivation fonctionnelle abstraite.

Jacques Gapaillard (1974)

Manuscripta mathematica

Derivation in Orlicz spaces.

C.A. Hayes (1972)

Journal für die reine und angewandte Mathematik

Derivative of the Donsker delta functionals

Herry Pribawanto Suryawan (2019)

Mathematica Bohemica

We prove that derivatives of any finite order of Donsker's delta functionals are well-defined elements in the space of Hida distributions. We also show the convergence to the derivative of Donsker's delta functionals of two different approximations. Finally, we present an existence result of finite product and infinite series of the derivative of the Donsker delta functionals.

Descriptive properties of density preserving autohomeomorphisms of the unit interval

Szymon Głąb, Filip Strobin (2010)

Open Mathematics

We prove that density preserving homeomorphisms form a Π11-complete subset in the Polish space ℍ of all increasing autohomeomorphisms of unit interval.

Descriptive properties of mappings between nonseparable Luzin spaces

Petr Holický, Václav Komínek (2007)

Czechoslovak Mathematical Journal

We relate some subsets $G$ of the product $X \times Y$ of nonseparable Luzin (e.g., completely metrizable) spaces to subsets $H$ of $ℕ^{ℕ} \times Y$ in a way which allows to deduce descriptive properties of $G$ from corresponding theorems on $H$ . As consequences we prove a nonseparable version of Kondô’s uniformization theorem and results on sets of points $y$ in $Y$ with particular properties of fibres $f^{- 1} (y)$ of a mapping $f X \to Y$ . Using these, we get descriptions of bimeasurable mappings between nonseparable Luzin spaces in terms of fibres.

Descriptive properties of spaces of signed measures

Ondřej F. K. Kalenda, Matias Raja (2003)

Acta Universitatis Carolinae. Mathematica et Physica

Descriptive set-theoretical properties of an abstract density operator

Szymon Gła̧b (2009)

Open Mathematics

Let $𝒦$ (ℝ) stand for the hyperspace of all nonempty compact sets on the real line and let d ±(x;E) denote the (right- or left-hand) Lebesgue density of a measurable set E ⊂ ℝ at a point x∈ ℝ. In [3] it was proved that ${K \in 𝒦 (ℝ) : \forall_{x} \in K (d^{+} (x, K) = 1 o r d^{-} (x, K) = 1)}$ is ⊓11-complete. In this paper we define an abstract density operator ⅅ± and we generalize the above result. Some applications are included.

Desintegration and compact measures.

Jan K. Pachl (1978)

Mathematica Scandinavica

Désintégration d'une mesure

L. Schwartz (1971/1972)

Séminaire Équations aux dérivées partielles (Polytechnique)

Désintégration d'une mesure non bornée

Jean Saint-Pierre (1975)

Annales de l'I.H.P. Probabilités et statistiques

Désintégration régulière d'une mesure par rapport à une famille de tribus

L. Schwartz (1971/1972)

Séminaire Équations aux dérivées partielles (Polytechnique)

Désintégrations réguliéres, tribus fortes, et probalités extrémales

Laurent Schwartz (1974)

Revista colombiana de matematicas

Deux essais de généralisation du critère de Grothendieck (compacité faible des ensembles de mesures)

Stephen Simons (1975/1976)

Séminaire Choquet. Initiation à l'analyse

Deux exemples de fonctions non mesurables

Zbigniew Grande (1979)

Colloquium Mathematicae

Deux mesures spéciales dans l’espace $E_{2}$

Miloslav Jůza (1978)

Časopis pro pěstování matematiky

Développement en base $θ$ , répartition modulo un de la suite $(x θ^{n})$ , n $\geq 0$ , langages codés et $θ$ -shift

Anne Bertrand-Mathis (1986)

Bulletin de la Société Mathématique de France

Diameter of Sets and Measure of Sumsets.

Imre Z. Ruzsa (1991)

Monatshefte für Mathematik

Dichotomies for $𝐂_{0} (X)$ and $𝐂_{b} (X)$ spaces

Szymon Głąb, Filip Strobin (2013)

Czechoslovak Mathematical Journal

Jachymski showed that the set $\{(x, y) \in 𝐜_{0} \times 𝐜_{0} : {(\sum_{i = 1}^{n} α (i) x (i) y (i))}_{n = 1}^{\infty} is bounded\}$ is either a meager subset of $𝐜_{0} \times 𝐜_{0}$ or is equal to $𝐜_{0} \times 𝐜_{0}$ . In the paper we generalize this result by considering more general spaces than $𝐜_{0}$ , namely $𝐂_{0} (X)$ , the space of all continuous functions which vanish at infinity, and $𝐂_{b} (X)$ , the space of all continuous bounded functions. Moreover, we replace the meagerness by $σ$ -porosity.

Die atomare Struktur topologischer Boolescher Ringe und s-beschränkter Inhalte

Hans Weber (1982)

Studia Mathematica

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