Results 71 to 80 of about 1,325 (220)
Superconvergence to freely infinitely divisible distributions
The phenomenon of superconvergence is proved for all freely infinitely divisible distributions. Precisely, suppose that the partial sums of a sequence of free identically distributed, infinitesimal random variables converge in distribution to a ...
Bercovici, Hari +2 more
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Iterated Crank–Nicolson Method for Peridynamic Models
In this paper, we explore the iterated Crank–Nicolson (ICN) algorithm for the one-dimensional peridynamic model. The peridynamic equation of motion is an integro-differential equation that governs structural deformations such as fractures. The ICN method
Jinjie Liu +2 more
doaj +1 more source
ABSTRACT This work presents a hybrid pressure face‐centred finite volume (FCFV) solver to simulate steady‐state incompressible Navier‐Stokes flows. The method leverages the robustness, in the incompressible limit, of the hybridisable discontinuous Galerkin paradigm for compressible and weakly compressible flows to derive the formulation of a novel, low‐
Matteo Giacomini +4 more
wiley +1 more source
Superconvergence of mixed covolume method for elliptic problems on triangular grids
In this paper, we consider the superconvergence of a mixed covolume method on the quasi-uniform triangular grids for the variable coefficient-matrix Poisson equations.
Bi, Chunjia
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By means of spatial quasi-Wilson nonconforming finite element and classical L1L1 approximation, an unconditionally stable fully-discrete scheme for two-dimensional time fractional diffusion equations is established.
Y. Zhao +9 more
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Superconvergence of Jacobi Gauss type spectral interpolation
In this paper, we extend the study of superconvergence properties of Chebyshev-Gauss-type spectral interpolation in Zhang (SIAM J Numer Anal 50(5):2966–2985, 2012) to general Jacobi–Gauss-type interpolation. We follow the same principle as in Zhang (SIAM
Zhao, Xiaodan +2 more
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An improved finite element approximation and superconvergence for temperature control problems
In this paper, we consider an improved finite element approximation for temperature control problems, where the state and the adjoint state are discretized by piecewise linear functions while the control is not discretized directly.
Yuelong Tang
doaj +1 more source
In this work, a time-fractional diffusion problem with a time-space dependent diffusivity is considered. The solution of such a problem has a weak singularity at the initial time t = 0 $t=0$ .
Na An
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Abstract Imposing nonperiodic boundary conditions for unit cell analyses may be necessary for a number of reasons in applications, for example, for validation purposes and specific computational setups. The work at hand discusses a strategy for utilizing the powerful technology behind fast Fourier transform (FFT)‐based computational micromechanics ...
Lennart Risthaus, Matti Schneider
wiley +1 more source
Superconvergence and error estimation of finite element solutions to fire-exposed frame problems
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.When a fire reaches the point of flashover the hot gases inside the burning room ignite resulting in furnace-like conditions.
Kirby, James Alexander, Kirby, J.A.
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