Results 21 to 30 of about 164,476 (314)

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

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

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

Decision reducts and bireducts in a covering approximation space and their relationship to set definability

open access: yesInternational Journal of Approximate Reasoning, 2019
In this paper, we discuss the relationship between different types of reduction and set definability. We recall the definition of a decision reduct, a γ-decision reduct, a decision bireduct and a γ-decision bireduct in a Pawlak approximation space and ...
Lynn D'eer, C. Cornelis
semanticscholar   +1 more source

Global universal approximation of functional input maps on weighted spaces [PDF]

open access: yesConstructive approximation, 2023
We introduce so-called functional input neural networks defined on a possibly infinite dimensional weighted space with values also in a possibly infinite dimensional output space.
Christa Cuchiero   +2 more
semanticscholar   +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

Topological Structures of IVF Approximation Spaces

open access: yesFuzzy Information and Engineering, 2016
An approximation space is a key concept in rough set theory, which plays an important role to approximate reasoning about data. An interval-valued fuzzy (IVF, for short) approximation space is an approximation space in the IVF environment. In this paper,
Gang-Qiang Zhang
doaj   +1 more source

Approximation of Rough Soft Set and Its Application to Lattice

open access: yesFuzzy Information and Engineering, 2015
The approximation of soft set is presented in modified soft rough (MSR) approximation space in this paper, i.e., approximation of an information system with respect to another information one.
Sankar Kumar Roy, Susanta Bera
doaj   +1 more source

A New Single-Valued Neutrosophic Rough Sets and Related Topology

open access: yesJournal of Mathematics, 2021
(Fuzzy) rough sets are closely related to (fuzzy) topologies. Neutrosophic rough sets and neutrosophic topologies are extensions of (fuzzy) rough sets and (fuzzy) topologies, respectively. In this paper, a new type of neutrosophic rough sets is presented,
Qiu Jin   +3 more
doaj   +1 more source

Deterministic Bi-Criteria Model for Solving Stochastic Mixed Vector Variational Inequality Problems

open access: yesMathematics, 2023
In this paper, we consider stochastic mixed vector variational inequality problems. Firstly, we present an equivalent form for the stochastic mixed vector variational inequality problems.
Meiju Luo, Menghan Du, Yue Zhang
doaj   +1 more source

Home - About - Disclaimer - Privacy