Results 21 to 30 of about 600,122 (312)

A Crank-Nicolson finite volume element method for two-dimensional Sobolev equations

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we provide a new type of study approach for the two-dimensional (2D) Sobolev equations. We first establish a semi-discrete Crank-Nicolson (CN) formulation with second-order accuracy about time for the 2D Sobolev equations. Then we directly
Zhendong Luo
doaj   +1 more source

Regularization Error Analysis for a Sideways Problem of the 2D Nonhomogeneous Time-Fractional Diffusion Equation

open access: yesMathematics, 2022
The inverse and ill-posed problem of determining a solute concentration for the two-dimensional nonhomogeneous fractional diffusion equation is investigated. This model is much worse than its homogeneous counterpart as the source term appears. We propose
Yonggang Chen, Yu Qiao, Xiangtuan Xiong
doaj   +1 more source

Generalized Beta Prime Distribution Applied to Finite Element Error Approximation

open access: yesAxioms, 2022
In this paper, we propose a new family of probability laws based on the Generalized Beta Prime distribution to evaluate the relative accuracy between two Lagrange finite elements Pk1 and Pk2 ...
Joël Chaskalovic, Franck Assous
doaj   +1 more source

On improved P1-interpolation error estimates in W1,p(0, 1): application to the finite element method

open access: yesMathematical Modelling and Analysis
Based on a new Taylor-like formula, we derived an improved interpolation error estimate in W1,p. We compare it with the classical error estimates based on the standard Taylor formula, and also with the corresponding interpolation error estimate, derived
Joel Chaskalovic, Franck Assous
doaj   +1 more source

Quantum Calculus-Based Error Estimations in Hermite-Hadamard Type Inequalities [PDF]

open access: yesSahand Communications in Mathematical Analysis
The main aim of this article is to present error approximations for Hermite-Hadamard inequalities, which are connected with $_{\omega_{1}}\mathfrak{q}$-fractional calculus operators and are based on $\mathrm{(\rho, m)}$-convex functions.
Muhammad Samraiz   +3 more
doaj   +1 more source

Linearization errors in discrete goal-oriented error estimation

open access: yesComputer Methods in Applied Mechanics and Engineering, 2023
This paper is concerned with goal-oriented a posteriori error estimation for nonlinear functionals in the context of nonlinear variational problems solved with continuous Galerkin finite element discretizations. A two-level, or discrete, adjoint-based approach for error estimation is considered.
Brian N. Granzow   +2 more
openaire   +3 more sources

Perona‐Malik equation ‐ error estimates for explicit finite volume scheme

open access: yesMathematical Modelling and Analysis, 2005
Error estimates in the L2 norm for the explicit fully discrete numerical finite volume scheme are derived and proved for Perona‐Malik equation. Numerical example is also presented.
A. Handlovičová, Z. Krivá
doaj   +1 more source

Numerical validation of probabilistic laws to evaluate finite element error estimates

open access: yesMathematical Modelling and Analysis, 2021
We propose a numerical validation of a probabilistic approach applied to estimate the relative accuracy between two Lagrange finite elements Pk and Pm,(k < m).
Jöel Chaskalovic, Franck Assous
doaj   +1 more source

Nutritional and Behavioral Intervention for Long‐Term Childhood Acute Leukemia Survivors With Metabolic Syndrome

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Metabolic syndrome (MetS) is a common complication in survivors of childhood acute lymphoblastic and myeloid leukemia (AL), and a major risk factor for premature cardiovascular disease, type‐2‐diabetes, and metabolic dysfunction‐associated steatotic liver disease (MASLD).
Visentin Sandrine   +10 more
wiley   +1 more source

Quantum solutions of a nonlinear Schrödinger equation [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization
In the present paper, we precisely conduct a quantum calculus method for the numerical solutions of PDEs. A nonlinear Schrödinger equation is considered. Instead of the known classical discretization methods based on the finite difference scheme, Adomian
S. Arfaoui, Ben Mabrouk
doaj   +1 more source

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