Results 121 to 130 of about 1,836 (211)

Superconvergence, Confinement and Duality

open access: yes, 1995
Arguments for the confinement of transverse gauge field excitations, which are based upon superconvergence relations of the propagator, and upon the BRST algebra, are reviewed and applied to supersymmetric models. They are shown to be in agreement with recent results obtained as a consequence of holomorphy and duality in certain $N=1$ SUSY models.
openaire   +2 more sources

Superconvergence Recovery for the Gradient of the Trilinear Finite Element

open access: yes, 2011
For a second-order elliptic boundary value problem in three dimensions, we use an interpolation postprocessing technique to obtain recovered gradients of tri- linear elements over regular meshes. Further, superconvergence of these gradients are proved.
Jing Hong Liu, De Cheng Yin
core   +1 more source

Analysis of Fractional Linear Multi-Step Methods of Order Four from Super-Convergence

open access: yesSultan Qaboos University Journal for Science
We analyze two implicit fractional linear multi-step methods of order four for solving fractional initial value problems. The methods are derived from the Grunwald-Letnikov approximation of fractional derivative at a non-integer shift point with super ...
Haniffa Mohamed Nasir, Khadija Al Hasani
doaj   +1 more source

Superconvergence analysis of spectral volume methods for one-dimensional diffusion and third-order wave equations

open access: yes
summary:We present a unified approach to studying the superconvergence property of the spectral volume (SV) method for high-order time-dependent partial differential equations using the local discontinuous Galerkin formulation.
Cao, Waixiang, Zhang, Zhimin, Yin, Xu
core   +1 more source

Superconvergence to freely infinitely divisible distributions

open access: yes, 2018
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
core   +1 more source

Time-dependent Hamiltonian Simulation via Magnus Expansion: Algorithm and Superconvergence [PDF]

open access: yes
Hamiltonian simulation becomes more challenging as the underlying unitary becomes more oscillatory. In such cases, an algorithm with commutator scaling and a weak dependence, such as logarithmic, on the derivatives of the Hamiltonian is desired.
Sarkar, Rahul, Fang, Di, Liu, Diyi
core  

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