Results 1 to 10 of about 516 (72)

Elliptic operators on refined Sobolev scales on vector bundles

, 2017
We introduce a refined Sobolev scale on a vector bundle over a closed infinitely smooth manifold. This scale consists of inner product H\"ormander spaces parametrized with a real number and a function varying slowly at infinity in the sense of Karamata ...
Zinchenko, Tetiana
core   +2 more sources

Interpolation of bilinear operators and compactness [PDF]

, 2012
The behavior of bilinear operators acting on interpolation of Banach spaces for the $\rho$ method in relation to the compactness is analyzed. Similar results of Lions-Peetre, Hayakawa and Person's compactness theorems are obtained for the bilinear case ...
D. L. Fernandez, Da Silva, E. Brandani
core  

Approximation by q-Post-Widder Operators Based on a New Parameter

Abstract and Applied Analysis
The purpose of this paper is to introduce q-Post–Widder operators based on a new parameter and study their approximation properties. The moments and central moments are investigated.
Qiu Lin
doaj   +1 more source

Approximation properties of Kantorovich type q-Balázs-Szabados operators

Demonstratio Mathematica, 2019
In this paper, we introduce a new kind of q-Balázs-Szabados-Kantorovich operators called q-BSK operators. We give a weighted statistical approximation theorem and the rate of convergence of the q-BSK operators.
Özkan Esma Yıldız
doaj   +1 more source

Riemann–Liouville Fractional Integral Form of Modified Baskakov-Type Operators: Approximation Properties and Statistical Convergence

Mathematics
In this paper, a generalized sequence of Baskakov operators connected to the Riemann–Liouville fractional integral is introduced. These sequences of operators deal with smooth approximation behavior in a wider class, i.e., a class of measurable functions
Tripuresh Mishra, Karunesh Kumar Singh, Nadeem Rao, Md. Nasiruzzaman   +3 more
doaj   +1 more source

Approximation Properties of a Fractional Integral-Type Szász–Kantorovich–Stancu–Schurer Operator via Charlier Polynomials

Mathematics
The goal of this manuscript is to introduce a new Stancu generalization of the modified Szász–Kantorovich operator connecting Riemann–Liouville fractional operators via Charlier polynomials.
Nadeem Rao, Mohammad Farid, Nand Kishor Jha   +2 more
doaj   +1 more source

Approximation on parametric extension of Baskakov–Durrmeyer operators on weighted spaces

Journal of Inequalities and Applications, 2019
In the present manuscript, we define a non-negative parametric variant of Baskakov–Durrmeyer operators to study the convergence of Lebesgue measurable functions and introduce these as α-Baskakov–Durrmeyer operators.
Md Nasiruzzaman, Nadeem Rao, Samar Wazir, Ravi Kumar   +3 more
doaj   +1 more source

Szász–Durrmeyer Operators Involving Confluent Appell Polynomials

Axioms
This article is concerned with the Durrmeyer-type generalization of Szász operators, including confluent Appell polynomials and their approximation properties.
Kadir Kanat, Selin Erdal
doaj   +1 more source

Global hypoelliptic and symbolic estimates for the linearized Boltzmann operator without angular cutoff

, 2017
In this article we provide global subelliptic estimates for the linearized inhomogeneous Boltzmann equation without angular cutoff, and show that some global gain in the spatial direction is available although the corresponding operator is not elliptic ...
Alexandre, Radjesvarane, Hérau, Frédéric, Li, Wei-Xi   +2 more
core  

Approximation Associated with Kantorovich Version of Bézier (λ,q)–Bernstein–Schurer Operators

Mathematics
In the present paper, the Kantorovich modification of the Schurer type of (λ,q)-Bernstein operators, which are associated by the shape parameter −1≤λ≤1 and the Bézier basis function, is presented.
Md. Nasiruzzaman, Mohammad Farid, Harun Çiçek, Nadeem Rao   +3 more
doaj   +1 more source