Results 11 to 20 of about 48,526 (265)

Best Approximation in Cone-Normed Space [PDF]

open access: yesمجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2016
The question of whether cone metric spaces are real generalizations of metric spaces is proved, in the sense of Best Approximation, not to be affirmative.
Abdallah Hakawati, Sawsan Al-Dwaik
doaj   +1 more source

Approximation of positive operators by analytic vectors

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
We give the estimates of approximation errors while approximating of a positive operator $A$ in a Banach space by analytic vectors. Our main results are formulated in the form of Bernstein and Jackson type inequalities with explicitly calculated ...
M.I. Dmytryshyn
doaj   +1 more source

Approximation of Space-Time Fractional Equations

open access: yesFractal and Fractional, 2021
The aim of this paper is to provide approximation results for space-time non-local equations with general non-local (and fractional) operators in space and time.
Raffaela Capitanelli, Mirko D’Ovidio
doaj   +1 more source

Fuzzy Approximating Spaces [PDF]

open access: yesJournal of Applied Mathematics, 2014
Relationships between fuzzy relations and fuzzy topologies are deeply researched. The concept of fuzzy approximating spaces is introduced and decision conditions that a fuzzy topological space is a fuzzy approximating space are obtained.
openaire   +4 more sources

On the Eikonal approximation in AdS space [PDF]

open access: yesJournal of High Energy Physics, 2009
We explore the eikonal approximation to graviton exchange in AdS_5 space, as relevant to scattering in gauge theories. We restrict ourselves to the regime where conformal invariance of the dual gauge theory holds, and to large 't Hooft coupling where the computation involves pure gravity.
Brower, Richard C.   +2 more
openaire   +3 more sources

Interpolated scales of approximation spaces for regular elliptic operators on compact manifolds

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2014
We define the interpolated scales of approximation spaces, generated by regular elliptic operators on compact manifolds. The appropriate Bernstein-Jackson inequalities and application to spectral approximations of regular elliptic operators are ...
M.I. Dmytryshyn
doaj   +1 more source

On approximation in the Bers spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
Let D D be a Jordan domain in the complex plane with rectifiable boundary
openaire   +1 more source

Generalization of Pawlak’s Approximations in Hypermodules by Set-Valued Homomorphisms

open access: yesFoundations of Computing and Decision Sciences, 2017
The initiation and majority on rough sets for algebraic hyperstructures such as hypermodules over a hyperring have been concentrated on a congruence relation.
Mirvakili Saeed   +2 more
doaj   +1 more source

The Chebyshev Set Problem in Riesz Space

open access: yesJournal of Function Spaces, 2022
In this paper, we mainly study the best approximation theory in Riesz space, which is not constructed by the norm, but only rely on the order structure.
Shengwei Wu   +4 more
doaj   +1 more source

Soft covering based rough graphs and corresponding decision making

open access: yesOpen Mathematics, 2019
Soft set theory and rough set theory are two new tools to discuss uncertainty. Graph theory is a nice way to depict certain information. Particularly soft graphs serve the purpose beautifully.
Park Choonkil   +5 more
doaj   +1 more source

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