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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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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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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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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 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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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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Superconvergent Perturbation Theory for an Anharmonic Oscillator
Journal of Mathematical Chemistry, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tschumper, Gregory S., Hoffmann, Mark R.
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Extrapolation and superconvergence of the Steklov eigenvalue problem
Advances in Computational Mathematics, 2009zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mingxia Li, Qun Lin 0001, Shuhua Zhang
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Superconvergence in Academic Libraries:
2016PurposeThe purpose of the research is to investigate superconvergence in academic libraries from a grass roots perspective of the staff responsible for delivering the service.Aims and objectivesThe aim of the research is to build on existing literature, extending the knowledge of current practice in the UK which, until recently, has mainly focused on ...
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