Results 21 to 30 of about 8,055,237 (221)

Some New Grüss' Type Inequalities for Functions of Selfadjoint Operators in Hilbert Spaces [PDF]

, 2008
Some new inequalities of Grüss’ type for functions of selfadjoint operators in Hilbert spaces, under suitable assumptions for the involved operators, are given.
Dragomir, Sever S
core   +5 more sources

Schurer operators of King type [PDF]

Creative Mathematics and Informatics, 2013
A class of linear and positive operators defined by finite sum which generalizes the classical Schurer’s operators in the King sense is constructed. For the mentioned class of operators, uniform convergences results, error estimations in terms of modulus of continuity and Voronovskaja type theorems are established.
PETRU I. BRAICA, OVIDIU T. POP, DAN BARBOSU   +2 more
openaire   +1 more source

Grüss' Type Inequalities for Functions of Selfadjoint Operators in Hilbert Spaces [PDF]

, 2008
Some inequalities of Grüss’ type for functions of selfadjoint operators in Hilbert spaces, under suitable assumptions for the involved operators, are ...
Dragomir, Sever S
core   +5 more sources

Approximation by Bernstein-Kantorovich type operators based on beta function

Filomat, 2023
With the idea taken from the King type operators which preserve some test functions, we introduce here some Durrmeyer variants of Bernstein operators based on Beta functions.
L. Aharouch, K. Ansari
semanticscholar   +1 more source

Rate of convergence of Szász-beta operators based on q-integers

Demonstratio Mathematica, 2017
The purpose of this paper is to establish the rate of convergence in terms of the weighted modulus of continuity and Lipschitz type maximal function for the q-Szász-beta operators. We also study the rate of A-statistical convergence.
Gupta Pooja, Agrawal Purshottam Narain
doaj   +1 more source

Schrödinger operators with δ and δ′-potentials supported on hypersurfaces [PDF]

, 2013
Self-adjoint Schrödinger operators with δ and δ′-potentials supported on a smooth compact hypersurface are defined explicitly via boundary conditions.
Lotoreichik, Vladimir, Behrndt, Jussi, Langer, Matthias   +2 more
core   +4 more sources

Approximation of Integrable Functions by Modified Barbosu Operators [PDF]

International Journal of Mathematical, Engineering and Management Sciences
This paper presents an approximation method of integrable functions using a modified Barbosu operator, aimed at improving the rate of convergence in function approximation on the interval [0,1]. By introducing a suitable adjustment in the weight function,
Rahul Kumar, Asha Ram Gairola
doaj   +1 more source

King operators which preserve $x^j$

Constructive Mathematical Analysis, 2023
We prove the unique existence of the functions $r_n$ $(n=1,2,\ldots )$ on $[0,1]$ such that the corresponding sequence of King operators approximates each continuous function on $[0,1]$ and preserves the functions $e_0(x)=1$ and $e_j(x)=x^j$, where $j\in\
Z. Finta
semanticscholar   +1 more source

On Baskakov operators preserving the exponential function

Journal of Numerical Analysis and Approximation Theory, 2017
In this paper, we are concerned about the King-type Baskakov operators defined by means of the preserving functions \(e_{0}\) and \(e^{2ax},\ a>0\) fixed.
Ovgu Gurel Yilmaz, Vijay Gupta, Ali Aral
doaj   +2 more sources

Some Inequalities of the Grüss Type for the Numerical Radius of Bounded Linear Operators in Hilbert Spaces [PDF]

, 2008
Some inequalities of the Grüss Type type for the numerical radius of bounded linear operators in Hilbert spaces are ...
Dragomir, Sever S
core   +5 more sources