Results 1 to 10 of about 45,837 (216)

Chebyshev type inequalities for Hilbert space operators [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2014
We establish several operator extensions of the Chebyshev inequality. The main version deals with the Hadamard product of Hilbert space operators.
Mohammad Sal   +2 more
core   +5 more sources

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   +3 more sources

On the Hausdorff measure of noncompactness for the parameterized Prokhorov metric [PDF]

open access: yesJournal of Inequalities and Applications, 2016
We quantify the Prokhorov theorem by establishing an explicit formula for the Hausdorff measure of noncompactness (HMNC) for the parameterized Prokhorov metric on the set of Borel probability measures on a Polish space.
Ben Berckmoes
doaj   +4 more sources

Piecewise Extended Chebyshev Spaces: a numerical test for design [PDF]

open access: yesApplied Mathematics and Computation, 2016
Given a number of Extended Chebyshev (EC) spaces on adjacent intervals, all of the same dimension, we join them via convenient connection matrices without increasing the dimension. The global space is called a Piecewise Extended Chebyshev (PEC) Space. In
Beccari, Carolina Vittoria   +2 more
core   +7 more sources

A conjecture implying the existence of non-convex Chebyshev sets in infinite-dimensional Hilbert spaces [PDF]

open access: yesLe Matematiche, 2010
In this paper, we propose the study of a conjecture whose positive solution would provide an example of a non-convex Chebyshev set in an infinite-dimensional real Hilbert space.
Biagio Ricceri
doaj   +4 more sources

Best Co-Approximation In Weighted Space [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2022
In this paper, we present best co- approximation in weighted space. The results considered are these of existence of functions of best co- approximation, specifications of co-a proximal and specification co- Chebyshev subspaces.
Alaa Auad, Alaa Hussain
doaj   +1 more source

Chebyshev-Steffensen Inequality Involving the Inner Product

open access: yesMathematics, 2022
In this paper, we prove the Chebyshev-Steffensen inequality involving the inner product on the real m-space. Some upper bounds for the weighted Chebyshev-Steffensen functional, as well as the Jensen-Steffensen functional involving the inner product under
Milica Klaričić Bakula   +1 more
doaj   +1 more source

Chebyshev Cardinal Wavelets for Nonlinear Volterra Integral Equations of the Second Kind [PDF]

open access: yesMathematics Interdisciplinary Research, 2022
This study concentrated on the numerical solution of a nonlinear Volterra integral equation. The approach is accorded to a type of orthogonal wavelets named the Chebyshev cardinal wavelets.
Behnam Salehi   +2 more
doaj   +1 more source

To Solution of Contact Problem for Rectangular Plate on Elastic Half-Space

open access: yesНаука и техника, 2020
Until the present time there is no exact solution to the contact problem for a rectangular plate on an elastic base with distribution properties. Practical analogues of this design are slab foundations widely used in construction.
S. V. Bosakov
doaj   +1 more source

OPTIMIZING AND THINNING PLANAR ARRAY USING CHEBYSHEV DISTRIBUTION AND IMPROVED PARTICLE SWARM OPTIMIZATION [PDF]

open access: yesJordanian Journal of Computers and Information Technology, 2015
In this paper, a new approach to the optimum solution based on the Chebyshev distribution for planar array and an improved particle swarm optimization (IPSO) will be considered.
Noor Salem Alshdaifat   +1 more
doaj   +1 more source

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