Results 31 to 40 of about 320,638 (309)

On extensions of bilinear maps

open access: yesMathematica Slovaca, 2022
Abstract The paper deals with extension of bounded bilinear maps. It gives a necessary and sufficient condition for extending a bounded bilinear map on the Cartesian product of subspaces of Banach spaces. This leads to a full characterization for extension of bounded bilinear maps on the Cartesian product of arbitrary subspaces of ...
openaire   +3 more sources

Generalized fuzzy cognitive maps: a new extension of fuzzy cognitive maps

open access: yesInternational Journal of System Assurance Engineering and Management, 2016
A fuzzy cognitive maps (FCM) is a cognitive map within the relations between the elements. FCM has been widely used in many applications such as experts system and knowledge engineering. However, classical FCM is inherently short of sufficient capability
Bingyi Kang   +3 more
semanticscholar   +1 more source

Fixed Points of Kannan Maps in the Variable Exponent Sequence Spaces p(·)

open access: yesMathematics, 2020
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

Multi-Scale Extension in an Entorhinal-Hippocampal Model for Cognitive Map Building

open access: yesFrontiers in Neurorobotics, 2021
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

Internet et les enjeux de la cartographie des religions au Liban

open access: yesGéographie et Cultures, 2008
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

On the 3D consistency of a Grassmann extended lattice Boussinesq system

open access: yesNuclear Physics B, 2020
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

On equicontinuity of families of mappings between Riemannian surfaces with respect to prime ends

open access: yesМатематичні Студії, 2022
Given a domain of some Riemannian surface, we consider questions related to the possibility of a continuous extension to the boundary of one class of Sobolev mappings.
E. Sevost'yanov   +3 more
doaj   +1 more source

Fuzzy r-continuous and fuzzy r-semicontinuous maps

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
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

The Amsterdam Ultra-high field adult lifespan database (AHEAD): A freely available multimodal 7 Tesla submillimeter magnetic resonance imaging database

open access: yesNeuroImage, 2020
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

IGS ROTI Maps: Current Status and Its Extension towards Equatorial Region and Southern Hemisphere

open access: yesSensors, 2022
The International GNSS Service (IGS) diurnal ROTI maps ionospheric product was developed to characterize ionospheric irregularities occurrence over the Northern hemisphere and has been available for the community since 2014.
Iurii Cherniak   +2 more
doaj   +1 more source

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