Uniform Approximation
High order above threshold ionization: The uniform approximation and the effect of the binding potential
... form approximation 关 ...saddle-point approximation inapplicable in this energy region. Moreover, the uniform approximation remains valid beyond the classical cutoff in the classically ...
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Fast Wideband Analysis of Antennas Using Ie-PO Hybrid Method and the Best Uniform Approximation
... best uniform approximation technique ...Pad´e approximation is used to improve the accuracy of the numerical ...best uniform approximation is easy to be applied in IE method and can ...
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High-order above-threshold ionization: The uniform approximation and the effect of the binding potential
... the uniform approximation the sum of saddle-point amplitudes (18) of each pair of quantum orbits is simply replaced by the collective amplitude ...form approximation improves the saddle-point ...
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Contourlet Filter Design Based on Chebyshev Best Uniform Approximation
... best uniform approximation, and give all the parameters of new contourlet filter banks using the Parks- McClellan algorithm, and new 9/7 filter banks based on author’s previous works are also ...
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Uniform approximation for period quadrupling bifurcations
... the uniform approximation consists in the application of a coordinate transformation which then brings the exponent in (16) again into the normal form (inside a region in which the stationary points are ...
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Uniform Approximation on Riemann Surfaces
... tangential approximation in C . For this reason, sets of tangential approximation are often called sets of Carleman ...of uniform approximation by functions holomorphic on ...of uniform ...
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On constrained uniform approximation
... discuss uniform approximation of a prescribed f ∈ C[a,b] by the polyno- mials that are also Hermite interpolants to a set of given data at a finite number of preassigned points in the interval ...
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Uniform approximation by incomplete polynomials
... SAFF* Department of Mathematics University of South Florida Tampa, Florida 33620 U.S.A... VARGA* * Department of Mathematics Kent State University Kent, Ohio 44242 U.S.A..[r] ...
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Uniform approximation from Tchebycheff systems
... Section 4 that in this situation each f E C[a,b has a unique best approximation and for this best approximation there is a strong characterisation theorem... It is then natural to ask wh[r] ...
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Some exact and asymptotic results for best uniform approximation
... In this thesis, we shall add to the list of these known functions, some special class of continuous functions whose best -uniform rational approximations and the quantity En,mf can be gi[r] ...
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High order approximation of degree nine and order eighteen
... best uniform approxi- ...best uniform approximation was studied by Chebyshev and Borel ...piecewise approximation for planar curves α 1 = α 2 = 9 is ...
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Bifurcations of periodic orbits and uniform approximations
... the approximation that was applied in this ...the uniform approximation consisted of expressing the coefficients of the normal forms in these equations by the classical actions and amplitudes of the ...
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On the approximate evaluation of some oscillatory integrals
... semiclassical approximation it is necessary to calculate the characteristic canonical oscillatory integral which has one or more saddle ...A uniform approximation of the integral, based on the ...
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Degree of approximation theorems for approximation with side conditions
... of uniform approximation of a function, f, on an interval, by polynomials of degree not exceeding V satisfying a fixed set of Hermite-Birkhoff interpolatory side conditions of order K...[r] ...
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On Shepard–Gupta type operators
... classical approximation theory and in scattered data interpola- tion ...achieving approximation results not possible by polynomials. Pointwise and uniform approximation error estimates, ...
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Improved Local Search Based Approximation Algorithm for Hard Uniform Capacitated k-Median Problem
... We gave a (5 + ) factor approximation algorithm for hard uniform capacitated k median problem using local search technique, violating cardinality by a factor of 3. It improves upon the existing results ...
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Accurate Computation of Electric Field Enhancement Factors for Metallic Nanoparticles Using the Discrete Dipole Approximation
... additional approximation [8], one which persists even when the sub- units are very small, which is not remediated by radiative reaction corrections or other finite frequency corrections, and which seems to be ...
5
Discrete Besov framework for finite volume approximation of the p-laplacian on non-uniform cartesian grids
... Abstract. This work addresses the problem of a priori error analysis for the finite volume approxi- mation of solutions of the p-laplacian on cartesian grids. We first recall the way we constructed such schemes and the ...
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Spice Compatible Model for Multiple Coupled Nonuniform Transmission Lines Application in Transient Analysis of VLSI Circuits
... lines approximation. Using step lines approximation, the system of coupled nonuniform TLs is decomposed into (N) arbitrary large number of coupled uniform step lines with different ...line ...
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NFA reduction via hypergraph vertex cover approximation
... Our work is based on a method to reduce NFAs by merging states based on a preorder relation defined on the set of states of the NFA [8]. It is shown in [34] that optimally reducing an NFA using preorders is at least as ...
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