Results 41 to 50 of about 10,024,030 (363)

A Low Dissipative and Stable Cell-Centered Finite Volume Method with the Simultaneous Approximation Term for Compressible Turbulent Flows

open access: yesMathematics, 2021
A simultaneous-approximation term is a non-reflecting boundary condition that is usually accompanied by summation-by-parts schemes for provable time stability.
Myeongseok Kang, Donghyun You
doaj   +1 more source

Approximation properties for modified $(p,q)$-Bernstein-Durrmeyer operators [PDF]

open access: yesMathematica Bohemica, 2018
We introduce modified $(p,q)$-Bernstein-Durrmeyer operators. We discuss approximation properties for these operators based on Korovkin type approximation theorem and compute the order of convergence using usual modulus of continuity.
Mohammad Mursaleen, Ahmed A. H. Alabied
doaj   +1 more source

The geodesic approximation for lump dynamics and coercivity of the Hessian for harmonic maps [PDF]

open access: yes, 2003
The most fruitful approach to studying low energy soliton dynamics in field theories of Bogomol'nyi type is the geodesic approximation of Manton.
Adams D.   +17 more
core   +2 more sources

A finite element method for exterior interface problems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1980
A procedure is given for the approximate solution of a class of two-dimensional diffraction problems. Here the usual inner boundary conditions are replaced by an inner region together with interface conditions.
R. C. Maccamy, S. P. Marin
doaj   +1 more source

Rational Transfer Function Approximations to Transport Delay [PDF]

open access: yesModeling, Identification and Control, 1990
A method is presented for determining a rational transfer function approximation to transport delay which has the property that the error in the frequency response phase shift is zero at certain frequencies.
Jens G. Balchen
doaj   +1 more source

Approximation Properties for Discrete Groups [PDF]

open access: yes, 2006
We provide an illustration of an interesting and nontrivial interaction between analytic and geometric properties of a group. We provide a short survey of approximation properties of operator algebras associated with discrete groups. We then demonstrate directly that groups that satisfy the property RD with respect to a conditionally negative length ...
Brodzki, Jacek, Niblo, Graham A.
openaire   +2 more sources

Approximation properties of λ-Kantorovich operators [PDF]

open access: yesJournal of Inequalities and Applications, 2018
In the present paper, we study a new type of Bernstein operators depending on the parameter λ ∈ [ - 1 , 1 ] . The Kantorovich modification of these sequences of linear positive operators will be considered. A quantitative Voronovskaja type theorem by means of Ditzian-Totik modulus of smoothness is proved.
Acu, Ana-Maria   +2 more
openaire   +5 more sources

Sparse Approximation Property and Stable Recovery of Sparse Signals From Noisy Measurements [PDF]

open access: yesIEEE Transactions on Signal Processing, 2011
In this correspondence, we introduce a sparse approximation property of order s for a measurement matrix A:||xs||2 ≤ D||Ax||2+β(σs(x))/√s for all x,where xs is the best s -sparse approximation of the vector x in l2, σs(x)is the s-sparse approximation ...
Qiyu Sun
semanticscholar   +1 more source

Some remarks on spectra of nuclear operators

open access: yesOpen Mathematics, 2018
We give criteria for the spectra of some nuclear operators in subspaces of quotients of Lp-spaces to be central-symmetric, as well as for the spectra of linear operators in Banach spaces to be Zd-symmetric in the sense of B. Mityagin.
Reinov Oleg I.
doaj   +1 more source

Сonsumer Rights, Competition and Intellectual Property Protection Regimes in the EaP Countries at the Cross Roads: EU Requirements and Reality [PDF]

open access: yesEastern European Journal of Regional Studies, 2021
Unlike the protection of the intellectual property or competition, the cooperation of the EU with the EaP countries in consumer protection matters belongs to the topics which are not prioritized by the bilateral and multilateral cooperation agenda and ...
Oksana HOLOVKO-HAVRYSHEVA
doaj  

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