Results 31 to 40 of about 2,520,215 (291)

Numerical Approximations for a Nonlocal Evolution Equation [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2011
In this paper we study numerical approximations of continuous solutions to the nonlocal p-Laplacian type diffusion equation, ut(t, x) = Ω J(x − y)|u(t, y) − u(t, x)| p−2(u(t, y) − u(t, x)) dy. First, we find that a semidiscretization in space of this problem gives rise to an ODE system whose solutions converge uniformly to the continuous one as the ...
Mayte Pérez-Llanos, Julio D. Rossi
openaire   +4 more sources

Numerical approximation of the Cahn-Larché equation [PDF]

open access: yesNumerische Mathematik, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Harald Garcke, Ulrich Weikard
openaire   +2 more sources

On numerical stability of continued fractions

open access: yesМатематичні Студії
The paper considers the numerical stability of the backward recurrence algorithm (BR-algorithm) for computing approximants of the continued fraction with complex elements.
V. Hladun   +3 more
doaj   +1 more source

Novel Approximations to the (Un)forced Pendulum–Cart System: Ansatz and KBM Methods

open access: yesMathematics, 2022
In the present investigation, some novel analytical approximations to both unforced and forced pendulum–cart system oscillators are obtained. In our investigation, two accurate and effective approaches, namely, the ansatz method with equilibrium point ...
Weaam Alhejaili   +2 more
doaj   +1 more source

Polynomials with bounds and numerical approximation [PDF]

open access: yesNumerical Algorithms, 2017
We discuss the generation of polynomials with two bounds-an upper bound and a lower bound-on compact sets in various dimensions. We show that a composition formula based on a weighted 4-squares Euler identity generates all such polynomials in dimension d = 1.
openaire   +4 more sources

Finite element approximation of a nonlinear cross-diffusion population model [PDF]

open access: yes, 2003
We consider a fully discrete finite element approximation of the nonlinear cross-diffusion population model: Find u i, the population of the ith species, i = 1 and 2, such that ∂ui ∂t −Δ [ ci ui + ai u2i + ui uj] − bi ∇.
John W. Barrett   +6 more
core   +1 more source

Novel Analytical and Numerical Approximations to the Forced Damped Parametric Driven Pendulum Oscillator: Chebyshev Collocation Method

open access: yesJournal of Mathematics, 2022
In this work, some novel approximate analytical and numerical solutions to the forced damped driven nonlinear (FDDN) pendulum equation and some relation equations of motion on the pivot vertically for arbitrary angles are obtained.
M.R. Alharthi   +3 more
doaj   +1 more source

Linear stationary iterative methods for the force-based quasicontinuum approximation [PDF]

open access: yes, 2012
Force-based multiphysics coupling methods have become popular since they provide a simple and efficient coupling mechanism, avoiding the difficulties in formulating and implementing a consistent coupling energy.
Luskin, Mitchell Barry   +1 more
core   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

Numerical Approximation of Some Infinite Gaussian Series and Integrals

open access: yesNonlinear Analysis, 2008
The paper deals with numerical computation of the asymptotic variance of the so-called increment ratio (IR) statistic and its modifications. The IR statistic is useful for estimation and hypothesis testing on fractional parameter H ∈ (0, 1) of random ...
M. Stoncelis, M. Vaičiulis
doaj   +1 more source

Home - About - Disclaimer - Privacy