Results 11 to 20 of about 2,203 (175)

Asymptotic approximation with Stancu Beta operators

open access: yesJournal of Numerical Analysis and Approximation Theory, 1998
The concern of this paper is a beta type operator \(L_n\) recently introduced by D.D. Stancu. We present the complete asymptotic expansion for \(L_n\) as \(n\) tends to infinity. All coefficients of \(n^{-k} \ (k=1,2, \ldots)\) are calculated explicitly
Ulrich Abel
doaj   +4 more sources

Approximation by modified Kantorovich-Stancu operators. [PDF]

open access: yesJ Inequal Appl, 2018
In the present paper, we study a new kind of Kantorovich-Stancu type operators. For this modified form, we discuss a uniform convergence estimate. Some Voronovskaja-type theorems are given.
Opriş AA.
europepmc   +5 more sources

Integrating Systematic Surveys With Historical Data to Model the Distribution of Ornithodoros turicata americanus, a Vector of Epidemiological Concern in North America. [PDF]

open access: yesEcol Evol
We conducted systematic surveys and modeled the distribution of Ornithodoros turicata, a soft tick of medical and veterinary importance. These ticks are ubiquitous in Florida and represent a risk to the establishment of foreign animal diseases in the region.
Botero-Cañola S   +6 more
europepmc   +2 more sources

Approximation by α-Bernstein-Schurer-Stancu operators [PDF]

open access: yesJournal of Mathematical Inequalities, 2021
The authors introduce a family of generalized Bernstein-Schurer-Stancu operators, depending on a non-negative real parameter $\alpha$. Several known sequences of positive linear operators are particular members of this family. The approximation properties of the new operators are investigated.
Çetin, Nursel, Acu, Ana-Maria
openaire   +2 more sources

Brass-Stancu-Kantorovich Operators on a Hypercube

open access: yesDolomites Research Notes on Approximation, 2023
We deal with multivariate Brass-Stancu-Kantorovich operators depending on a non-negative integer parameter and defined on the space of all Lebesgue integrable functions on a unit hypercube. We prove $L^{p}$-approximation and provide estimates for the $L^{p}$-norm of the error of approximation in terms of a multivariate averaged modulus of continuity ...
Başcanbaz-Tunca, Gülen, Gonska, Heiner
openaire   +2 more sources

Approximation properties of q-Kantorovich-Stancu operator [PDF]

open access: yesJournal of Inequalities and Applications, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kang, Shin Min   +3 more
openaire   +1 more source

The price impact of analyst revisions and the state of the economy: Evidence around the world

open access: yesFinancial Review, Volume 58, Issue 4, Page 887-930, November 2023., 2023
Abstract This paper examines the price impact of analyst revisions in distinct economic states around the world. We find stronger average 2‐day cumulative abnormal returns in bad times, though this pattern is mainly observed in developed countries. In addition, trading strategies following analyst revisions, with holding periods from 1 to 6 months, are
Chen Su
wiley   +1 more source

Durrmeyer-Stancu type operators

open access: yesJournal of Numerical Analysis and Approximation Theory, 2010
Considering two given real parameters \(\alpha, \beta\) satisfying the conditions \(0\leq\alpha\leq\beta\), D. D. Stancu [7] constructed and studied the linear positive operators \(P^{(\alpha,\beta)}_m:C([0,1])\to C([0,1])\), defined for any \(f\in C([0,1])\) and any positive integer \(m\) by (1). In this paper we are dealing with the Durrmeyer form of
Ovidiu T. Pop, Dan Bărbosu
openaire   +3 more sources

Chlodowsky-type q-Bernstein-Stancu-Kantorovich operators [PDF]

open access: yesJournal of Inequalities and Applications, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Özarslan, Mehmet Ali, Vedi, Tuba
openaire   +3 more sources

Modified Kantorovich-Stancu operators (II) [PDF]

open access: yesStudia Universitatis Babes-Bolyai Matematica, 2019
In this paper, we introduce a new kind of Bernstein-KantorovichStancu operators. These operators generalize the operators introduced in the paper [2] by V. Gupta, G.
Ioan Gavrea, Adonia-Augustina Opris
openaire   +1 more source

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