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Displaying 61 – 80 of 838

Semicontinuity of maps which are limits of sequences of quasi-continuous maltivalued maps

J. Ewert (1987)

Matematički Vesnik

Semi-continuity of set-valued monotone mappings

P. Kenderov (1975)

Fundamenta Mathematicae

Semicontinuous integrands as jointly measurable maps

Oriol Carbonell-Nicolau (2014)

Commentationes Mathematicae Universitatis Carolinae

Suppose that $(X, 𝒜)$ is a measurable space and $Y$ is a metrizable, Souslin space. Let $𝒜^{u}$ denote the universal completion of $𝒜$ . For $x \in X$ , let $\underset{̲}{f} (x, \cdot)$ be the lower semicontinuous hull of $f (x, \cdot)$ . If $f : X \times Y \to \bar{ℝ}$ is $(𝒜^{u} \otimes ℬ (Y), ℬ (\bar{ℝ}))$ -measurable, then $\underset{̲}{f}$ is $(𝒜^{u} \otimes ℬ (Y), ℬ (\bar{ℝ}))$ -measurable.

Semi-contractions des espaces localement compacts et cas des variétés complexes

Jean-Jacques Loeb (2013)

Annales de la faculté des sciences de Toulouse Mathématiques

En nous inspirant d’articles de Beardon, nous donnons des résultats concernant les points fixes et les orbites d’auto-applications contractantes et semi-contractantes des espaces connexes localement compacts. Des résultats plus précis sont obtenus dans le cas des variétés complexes Kobayashi hyperboliques.

Semiconvex compacta

Oleh R. Nykyforchyn (1997)

Commentationes Mathematicae Universitatis Carolinae

We define and investigate a generalization of the notion of convex compacta. Namely, for semiconvex combination in a semiconvex compactum we allow the existence of non-trivial loops connecting a point with itself. It is proved that any semiconvex compactum contains two non-empty convex compacta, the center and the weak center. The center is the largest compactum such that semiconvex combination induces a convex structure on it. The convex structure on the weak center does not necessarily coincide...

Semieffektive und D-Minimale Aktionen

P. Strantzalos (1973)

Δελτίο της Ελληνικής Μαθηματικής Εταιρίας

Semi-generalized continuous maps in topological spaces.

Caldas Cueva, Miguel (1995)

Portugaliae Mathematica

Semigroup actions on intuitionistic fuzzy 2-metric spaces.

Thillaigovindan, N., Shanthi, S.Anita, Vijayabalaji, S. (2010)

International Journal of Open Problems in Computer Science and Mathematics. IJOPCM

Semigroup actions on tori and stationary measures on projective spaces

Yves Guivarc'h, Roman Urban (2005)

Studia Mathematica

Let Γ be a subsemigroup of G = GL(d,ℝ), d > 1. We assume that the action of Γ on $ℝ^{d}$ is strongly irreducible and that Γ contains a proximal and quasi-expanding element. We describe contraction properties of the dynamics of Γ on $ℝ^{d}$ at infinity. This amounts to the consideration of the action of Γ on some compact homogeneous spaces of G, which are extensions of the projective space $ℙ^{d - 1}$ . In the case where Γ is a subsemigroup of GL(d,ℝ) ∩ M(d,ℤ) and Γ has the above properties, we deduce that the Γ-orbits...

Semigroup of Contractions of Wreath Products of Metric Spaces

Bogdana Oliynyk (2010)

Discussiones Mathematicae - General Algebra and Applications

In this paper semigroups of contractions of metric spaces are considered. The semigroup of contractions of the wreath product of metric spaces is calculated.