Results 11 to 20 of about 166,138,308 (237)

An Upwind Interior Penalty DG Scheme for Solute Transport in 2D Variable-Order Mobile–Immobile Model [PDF]

Entropy
This paper develops and rigorously analyzes a fully discrete upwind interior penalty discontinuous Galerkin (IPDG) scheme for simulating solute transport in two-dimensional variable-order fractional mobile–immobile media.
Leilei Wei, Lijie Liu, Xindong Zhang
doaj   +2 more sources

Approximation degree of Durrmeyer–Bézier type operators

Journal of Inequalities and Applications, 2018
Recently, a mixed hybrid operator, generalizing the well-known Phillips operators and Baskakov–Szász type operators, was introduced. In this paper, we study Bézier variant of these new operators.
Purshottam N. Agrawal, Serkan Araci, Martin Bohner, Kumari Lipi   +3 more
doaj   +2 more sources

Multivariate normal approximation in geometric probability [PDF]

, 2008
Consider a measure μλ = Σx ξx δx where the sum is over points x of a Poisson point process of intensity λ on a bounded region in d-space, and ξx is a functional determined by the Poisson points near to x, i.e.
Penrose, Mathew D., Wade, Andrew R.
core   +4 more sources

Approximation by bivariate Chlodowsky type Szász–Durrmeyer operators and associated GBS operators on weighted spaces

Journal of Inequalities and Applications, 2022
In this article, we consider a bivariate Chlodowsky type Szász–Durrmeyer operators on weighted spaces. We obtain the rate of approximation in connection with the partial and complete modulus of continuity and also for the elements of the Lipschitz type ...
Reşat Aslan, M. Mursaleen
doaj   +1 more source

New Methods for Dynamic Analysis of Structural Systems under Earthquake Loads [PDF]

Journal of Rehabilitation in Civil Engineering, 2022
Two numerical methods are proposed for dynamic analysis of single-degree-of-freedom systems. Basics of dynamics and elementary tools from numerical calculus are employed to formulate the methods.
Mehdi Babaei, Maysam Jalilkhani, Seyed Hooman Ghasemi, Somayeh Mollaei   +3 more
doaj   +1 more source

Identification of unknown parameters of the dynamic model of mass transfer

Mathematical Modelling and Analysis, 2023
An iterative algorithm for identifying unknown parameters of a mathematical model based on the Bayesian approach is proposed, which makes it possible to determine the most probable maximum informative estimates of these parameters.
Volodymyr Zavialov, Oleksii Lobok, Taras Mysiura, Nataliia Popova, Valentyn Chornyi, Taras Pohorilyi   +5 more
doaj   +1 more source

A note on the polynomial approximation of vertex singularities in the boundary element method in three dimensions [PDF]

, 2008
We study polynomial approximations of vertex singularities of the type $r^\lambda |\log r|^\beta$ on three-dimensional surfaces. The analysis focuses on the case when $\lambda > -\frac 12$.
Bespalov, A, Bespalov, Alexei
core   +6 more sources

On the Approximation by Bivariate Szász–Jakimovski–Leviatan-Type Operators of Unbounded Sequences of Positive Numbers

Mathematics, 2023
In this paper, we construct the bivariate Szász–Jakimovski–Leviatan-type operators in Dunkl form using the unbounded sequences αn, βm and ξm of positive numbers.
Abdullah Alotaibi
doaj   +1 more source

Solving nonlinear stochastic differential equations via fourth-degree hat functions

Results in Control and Optimization, 2023
The article focuses on introducing novel fourth-degree hat functions (FDHFs) for constructing new operations matrices used to find numerical solutions for nonlinear stochastic differential equations (NSDEs).
Jehad K. Mohammed, Ayad R. Khudair
doaj   +1 more source

Rate of convergence of Wong-Zakai approximations for SDEs and SPDEs [PDF]

, 2006
In the work we estimate the rate of convergence of the Wong-Zakai type of approximations for SDEs and SPDEs. Two cases are studied: SDEs in finite dimensional settings and evolution stochastic systems (SDEs in the infinite dimensional case).
Shmatkov, Anton
core   +2 more sources