Results 21 to 30 of about 399,111 (305)

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

A Continuous-Time Random Walk Extension of the Gillis Model

open access: yesEntropy, 2020
We consider a continuous-time random walk which is the generalization, by means of the introduction of waiting periods on sites, of the one-dimensional non-homogeneous random walk with a position-dependent drift known in the mathematical literature as ...
Gaia Pozzoli   +3 more
doaj   +1 more source

More on the extension of linear operators on Riesz spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
The classical Kantorovich theorem asserts the existence and uniqueness of a linear extension of a positive additive mapping, defined on the positive cone $E^+$ of a Riesz space $E$ taking values in an Archimedean Riesz space $F$, to the entire space $E$.
O.G. Fotiy, A.I. Gumenchuk, M.M. Popov
doaj   +1 more source

A Common Assessment Space for Different Sensor Structures

open access: yesSensors, 2019
The study of the evolution process of our visual system indicates the existence of variational spatial arrangement; from densely hexagonal in the fovea to a sparse circular structure in the peripheral retina.
Wei Wen   +3 more
doaj   +1 more source

Challenges and Training Needs for Integrating Social Media into Agricultural Extension Services in Enugu State, Nigeria

open access: yesJournal of Agricultural Extension, 2023
This research examined the challenges, and training needs for the integration of social media into extension in Enugu State, Nigeria.  Ninety-seven agricultural extension workers were proportionately selected from six agricultural zones in Enugu State ...
Juliana Chinasa Iwuchukwu   +3 more
doaj   +5 more sources

An Extension Result for Continuous Valuations

open access: yesJournal of the London Mathematical Society, 1998
We consider the problem of extending a continuous valuation to a Borel measure on a \(T_0\) topological space. Let \((X,\Omega X)\) denote any \(T_0\) topological space. We use the term valuation to designate a nonnegative, extended real valued function \(\nu\), defined on the lattice of open sets and satisfying: \(\nu(\emptyset)=0\) (strictnenss), \(G\
Maurizio Alvarez-Manilla   +2 more
openaire   +1 more source

Does pterygium morphology affect corneal astigmatism?

open access: yesTherapeutic Advances in Ophthalmology, 2021
Purpose: The purpose of this study was to evaluate the correlation between corneal astigmatism and the morphology of pterygium with anterior segment optic coherence tomography (AS-OCT).
Emine Doğan   +4 more
doaj   +1 more source

From curves to currents

open access: yesForum of Mathematics, Sigma, 2021
Many natural real-valued functions of closed curves are known to extend continuously to the larger space of geodesic currents. For instance, the extension of length with respect to a fixed hyperbolic metric was a motivating example for the development of
Dídac Martínez-Granado   +1 more
doaj   +1 more source

Infinite Portfolio Strategies

open access: yesContemporary Economics, 2012
In continuous-time stochastic calculus a limit in probability is used to extend the definition of the stochastic integral to the case where the integrand is not square-integrable at the endpoint of the time interval under consideration.
Stephen F. LeRoy
doaj   +1 more source

Curved interface reconstruction for 2D compressible multi-material flows [PDF]

open access: yesESAIM: Proceedings and Surveys, 2020
In this paper, we describe an interface reconstruction method in two dimension. This method is an extension of DPIR [1], which reconstructs continuous interfaces and preserves partial volumes using dynamic programming.
Chollet Igor   +5 more
doaj   +1 more source

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