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Convergence of Special Sequences of Semi-Exponential Operators [PDF]

open access: goldMathematics, 2022
Several papers, mainly written by J. de la Call and co-authors, contain modifications of classical sequences of positive linear operators to obtain new sequences converging to limits which are not necessarily the identity operator.
Ana Maria Acu   +3 more
doaj   +2 more sources

Exponential dichotomies of evolution operators in Banach spaces [PDF]

open access: green, 2013
This paper considers three dichotomy concepts (exponential dichotomy, uniform exponential dichotomy and strong exponential dichotomy) in the general context of non-invertible evolution operators in Banach spaces.
Nicolae Lupa, Mihail Megan
openalex   +3 more sources

New modification of the Post Widder operators preserving exponential functions [PDF]

open access: goldArab Journal of Basic and Applied Sciences
The current article deals with a modification of the Post-Widder operators which reproduce the exponential functions both [Formula: see text] and [Formula: see text] for [Formula: see text] The central moments, uniform convergence of the operators and ...
Melek Sofyalıoğlu Aksoy
doaj   +2 more sources

Direct Estimate for Some Operators of Durrmeyer Type in Exponential Weighted Space [PDF]

open access: goldDemonstratio Mathematica, 2014
In the present paper, we investigate the convergence and the approximation order of some Durrmeyer type operators in exponential weighted space. Furthermore, we obtain the Voronovskaya type theorem for these operators.
Krech Grażyna, Wachnicki Eugeniusz
doaj   +2 more sources

Convergence analysis of semi-exponential Post-Widder operators [PDF]

open access: diamondMiskolc Mathematical Notes
In the present article, we provide a recurrence relation for the semi-exponential Post-Widder operators (1.1) and estimate the moments for these operators.
Sandeep Kumar, Naokant Deo
doaj   +2 more sources

The impact of the exponential Kernel’s bandwidth parameter on learning algorithms [PDF]

open access: yesScientific Reports
Exponential kernels have been used considerably in statistics, machine learning, and artificial intelligence for tasks such as kernel principal component analysis (Kernel PCA), support vector machines(SVM), visualization, clustering, and pattern ...
Mahdi A. Almahdawi
doaj   +2 more sources

Non-Abelian W-representation for GKM

open access: yesPhysics Letters B, 2021
W-representation is a miraculous possibility to define a non-perturbative (exact) partition function as an exponential action of somehow integrated Ward identities on unity.
A. Mironov, V. Mishnyakov, A. Morozov
doaj   +1 more source

Gamma operators reproducing exponential functions

open access: yesAdvances in Difference Equations, 2020
The present paper deals with reconstruction of Gamma operators preserving some exponential functions and studies their approximation properties: uniform convergence, rate of convergence, asymptotic formula and saturation.
Tuncer Acar   +2 more
doaj   +1 more source

Development of neutrosophic cubic hesitant fuzzy exponential aggregation operators with application in environmental protection problems

open access: yesScientific Reports, 2023
The population growth and urbanization has caused an exponential increase in waste material. The proper disposal of waste is a challenging problem nowadays. The proper disposal site selection with typical sets and operators may not yield fruitful results.
Ateeq Ur Rehman   +4 more
doaj   +1 more source

Spectral projections and resolvent bounds for partially elliptic quadratic differential operators [PDF]

open access: yes, 2012
We study resolvents and spectral projections for quadratic differential operators under an assumption of partial ellipticity. We establish exponential-type resolvent bounds for these operators, including Kramers-Fokker-Planck operators with quadratic ...
B Helffer   +8 more
core   +1 more source

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