Results 131 to 140 of about 207 (177)
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Superconvergence of projection integrators for conservative system
Journal of Computational Physics, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nan Lu +3 more
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Superconvergence Properties of Optimal Control Problems
SIAM Journal on Control and Optimization, 2004Summary: An optimal control problem for a two-dimensional (2-d) elliptic equation is investigated with pointwise control constraints. This paper is concerned with discretization of the control by piecewise constant functions. The state and the adjoint state are discretized by linear finite elements.
Christian Meyer 0001, Arnd Rösch
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Superconvergence and current algebra
Annals of Physics, 1967Abstract We consider some general features of the superconvergence sum rules and of their saturation. We treat also the problem of the structure of current algebra sum rules, discussing the presence of non Regge asymptotic behavior. Finally, we discuss current algebra and superconvergence sum rules for higher-spin targets, and their mutual ...
V De Alfaro +3 more
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Superconvergent dispersion relations
Annals of Physics, 1968Abstract The more general aspects of the saturation problem for superconvergent dispersion relations are reviewed and discussed. It is found that complete sets of superconvergence conditions for forward amplitudes generally have solutions corresponding to higher collinear symmetries of the vertices.
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An alternative interpretation of superconvergence
International Journal for Numerical Methods in Engineering, 1979AbstractThe superconvergent property of the discrete solution to certain one‐dimensional problems is examined in the context of the weighted residual difference equations and their conservation properties. The difference equations are shown to satisfy the differential equation exactly at nodes and reproduce the derivatives at boundary nodes.
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Algebraic Realization of Weinberg's Superconvergence Conditions
Physical Review D, 1970Summary: We investigate the algebraic realization of a pair of sum rules proposed by Weinberg for forward scattering of massless pions, for the case when only \(p\)-wave pions are taken into account. It is shown that the algebraic structure of the first superconvergence condition is given by the Lie algebra of the group \(\text{SU}(2)\otimes\text{SU}(4)
Noga, M., Cronström, C.
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Superconvergence for Triangular Linear Edge Elements
Communications in Computational Physics, 2019Summary: Superconvergence for the lowest-order edge finite elements on strongly regular triangulation is studied. By the averaging technique, superconvergence of order \(\mathcal{O}(h^2)\) is established at the midpoint of the interior edge for both the finite element solution and the curl of the finite element solution.
Wu, Chao +4 more
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Superconvergence of a Chebyshev Spectral Collocation Method
Journal of Scientific Computing, 2007A Chebyshev spectral collocation method is derived for approximating the solution of the second-order two point differential boundary value problems in terms of Chebyshev polynomials \[ u_p= \sum^p_1 a_m\psi_m(x),\quad\psi_m(x)= \int^x_{-1} T_{m-1}(t)\,dt,\;m\geq 1. \] Superconvergence of the derivatives \(u_p'\) at zero's of \(T_m(x)\) is proved.
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Superconvergence Analysis for Metamaterials
2012In this chapter, we first give a quick review of superconvergence analysis in Sect. 5.1. Then we carry out the superclose analysis for 3-D metamaterial Maxwell’s equations represented by the Drude model. The analysis for a semi-discrete scheme is presented in Sect. 5.2, which is followed by the analysis for two fully-discrete schemes in Sect. 5.3.
Jichun Li, Yunqing Huang
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