Results 11 to 20 of about 229 (177)

Wavelets-Associated Approximation to the Family of New Class of q-Szász Operators Via q-Analog

open access: yesJournal of Function Spaces
MSC2020 Classification: Primary 41A25, 41A36; Secondary 33C45.
Md. Nasiruzzaman   +3 more
doaj   +2 more sources

Immunoglobulin E‐specific allergens against leaf in serum of dogs with clinical features of grass leaf allergy

open access: yesVeterinary Dermatology, Volume 34, Issue 5, Page 393-403, October 2023., 2023
Background – Grass leaf has been suspected to cause immunoglobulin (Ig)E‐mediated immediate hypersensitivity reactions both in humans and in dogs. However, most studies in this area are case control studies without in vitro data showing the involvement of IgE in the reaction.
Ken Mason, Janet Davies, Merja Ruutu
wiley   +1 more source

A modified Post Widder operators preserving eᴬˣ [PDF]

open access: yes, 2022
In the present paper, we discuss the approximation properties of modified Post-Widder operators, which preserve the test function eᴬˣ. We establish weighted approximation and a direct quantitative estimate for the modified operators.
Gancho TACHEV, Gancho TACHEV   +1 more
core   +2 more sources

A new class of Bernstein-type operators obtained by iteration [PDF]

open access: yes, 2023
A new class of Bernstein-type operators are obtained by applying an iterative method of modifications starting from the Bernstein operators. These operators have good properties of approximation of functions and of their derivatives.
Radu Paltanea   +3 more
core   +2 more sources

Strong inequalities for the iterated Boolean sums of Bernstein operators: Dedicated to Professor Heiner Gonska on the occasion of his 70th anniversary. [PDF]

open access: yes, 2022
In this paper we investigate the approximation properties for the iterated Boolean sums of Bernstein operators. The approximation behaviour of those operators is presented by the so-called strong inequalities. Moreover, such strong inequalities are valid
ZHOU, Xinlong, CHENG, Li
core   +1 more source

Global approximation properties of modified SMK operators [PDF]

open access: yes, 2010
In this paper, introducing a general modification of the classical Sz?sz-Mirakjan-Kantorovich (SMK) operators, we study their global approximation behavior. Some special cases are also presented. 2010 Mathematics Subject Classifications. 41A25, 41A36. .
Duman, Oktay   +3 more
core   +1 more source

Approximation by max-product operators of Kantorovich type: Dedicated to Professor Heiner Gonska on the occasion of his 70th anniversary. [PDF]

open access: yes, 2019
We associate to various linear Kantorovich type approximation operators, nonlinear max-product operators for which we obtain quantitative approximation results in the uniform norm, shape preserving properties and localization results. Mathematics Subject
COROIANU, Lucian, GAL, Sorin G.
core   +1 more source

Constrained visualisation using Shepard-Bernoulli interpolation operator [PDF]

open access: yes, 2020
We consider Shepard-Bernoulli operator in order to solve a problem of interpolation of scattered data that is constrained to preserve positivity, using the technique described by K.W. Brodlie, M.R. Asim and K. Unsworth (2005). We also give some numerical
CĂTINAȘ, Teodora
core   +2 more sources

Modified Kantorovich-Stancu operators (II) [PDF]

open access: yes, 2019
In this paper, we introduce a new kind of Bernstein-Kantorovich- Stancu operators. These operators generalize the operators introduced in the paper [2] by V. Gupta, G. Tachev and A.M. Acu.
OPRIȘ, Adonia-Augustina, GAVREA, Ioan
core   +2 more sources

On dilation operators and sampling numbers

open access: yesJournal of Function Spaces, Volume 6, Issue 1, Page 17-46, 2008., 2008
We consider the dilation operators Tk : f → f(2k.) in the frame of Besov spaces Bpqs(ℝd) with 1 ≤p, q ≤ ∞. If s > 0, Tk is a bounded linear operator from Bpqs(ℝd) into itself and there are optimal bounds for its norm, see [4, 2.3.1]. We study the situation in the case s = 0, an open problem mentioned also in [4]. It turns out, that new effects based on
Jan Vybíral, Hans Triebel
wiley   +1 more source

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