Results 11 to 20 of about 166,127,910 (213)
On the range of completely bounded maps
It is shown that if every bounded linear map from a C*-algebra α to a von Neumann algebra β is completely bounded, then either α is finite-dimensional or β⫅𝒞⊗Mn, where 𝒞 is a commutative von Neumann algebra and Mn is the algebra of n×n complex matrices.
Richard I. Loebl
doaj +1 more source
Kannan maps have inspired a branch of metric fixed point theory devoted to the extension of the classical Banach contraction principle. The study of these maps in modular vector spaces was attempted timidly and was not successful.
Afrah A. N. Abdou, Mohamed Amine Khamsi
doaj +1 more source
Introduction to Completely Geometrically Integrable Maps in High Dimensions
We introduce here the concept of completely geometrically integrable self-maps of n-dimensional (n≥2) cells, cylinders and tori. This concept is the extension of the geometric integrability concept previously introduced for the self-maps of a rectangle ...
Lyudmila S. Efremova
doaj +1 more source
Multi-Scale Extension in an Entorhinal-Hippocampal Model for Cognitive Map Building
Neuroscience research shows that, by relying on internal spatial representations provided by the hippocampus and entorhinal cortex, mammals are able to build topological maps of environments and navigate.
Jiru Wang, Rui Yan, Huajin Tang
doaj +1 more source
On the 3D consistency of a Grassmann extended lattice Boussinesq system
In this paper, we formulate a “Grassmann extension” scheme for constructing noncommutative (Grassmann) extensions of Yang-Baxter maps together with their associated systems of PΔEs, based on the ideas presented in [15].
Sotiris Konstantinou-Rizos
doaj +1 more source
Normative databases allow testing of novel hypotheses without the costly collection of magnetic resonance imaging (MRI) data. Here we present the Amsterdam Ultra-high field adult lifespan database (AHEAD).
Anneke Alkemade +8 more
doaj +1 more source
Internet et les enjeux de la cartographie des religions au Liban
This article examines the contents of six maps found on the Internet, which illustrate the spatial distribution of the different religious groups present in the Lebanon.
Michael F. Davie
doaj +1 more source
Fixed Points of Kannan Maps in the Variable Exponent Sequence Spaces ℓp(·)
Kannan maps have inspired a branch of metric fixed point theory devoted to the extension of the classical Banach contraction principle. The study of these maps in modular vector spaces was attempted timidly and was not successful.
Afrah A. N. Abdou +1 more
doaj +1 more source
Fuzzy r-continuous and fuzzy r-semicontinuous maps
We introduce a new notion of fuzzy r-interior which is an extension of Chang's fuzzy interior. Using fuzzy r-interior, we define fuzzy r-semiopen sets and fuzzy r-semicontinuous maps which are generalizations of fuzzy semiopen sets and fuzzy ...
Seok Jong Lee, Eun Pyo Lee
doaj +1 more source
Lipschitz Extensions to Finitely Many Points
We consider Lipschitz maps with values in quasi-metric spaces and extend such maps to finitely many points. We prove that in this context every 1-Lipschitz map admits an extension such that its Lipschitz constant is bounded from above by the number of ...
Basso Giuliano
doaj +1 more source

