Results 281 to 290 of about 1,035,375 (308)

Asymptotic Convergence in Quantum Scattering Theory

Journal of Computational Methods in Sciences and Engineering, 2001
The key problem in quantum scattering theory is the probability conservation, i.e., the unitarity of the S-matrix, which connects the initial with the final state of evolution of the considered physical system. This problem is not possible to solve if the scattering states neglect the so-called asymptotic convergence problem, which require that the ...
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Asymptotic development by \(\Gamma{}\)-convergence

1993
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Anzellotti, Gabriele, Baldo, Sisto
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THE CONVERGENCE RATES OF ASYMPTOTICALLY BAYES DISCRIMINATION

Acta Mathematica Scientia, 1985
Let \(P_ D(e)\) be the Bayes discrimination which minimizes the error probability, and \(P_{D_ n}(e)\) be the conditional error probability given the training samples. Here \(D=D(x)=p_ 1f_ 1(x)-p_ 0f_ 0(x)\), where \(p_ j=P(\theta =j)\), \(j=0,1\), for the population (X,\(\theta)\) in \(R^ d\), and \(f_ j(x)\) is the conditional density function of X ...
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Asymptotically convergent switching differentiator

International Journal of Adaptive Control and Signal Processing, 2019
SummaryA novel switching differentiator with a considerably simplified form is proposed. Under the assumption that the time‐derivative of a time‐varying signal has a Lipschitz constant, it is shown that estimation error is asymptotically convergent to zero. The estimated derivative shows neither chattering nor peaking phenomenon.
Jang‐Hyun Park, Seong‐Hwan Kim, Tae‐Sik Park   +2 more
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A convergence theorem for asymptotic contractions

Journal of Fixed Point Theory and Applications, 2008
We show that to each asymptotic contraction T with a bounded orbit in a complete metric space X, there corresponds a unique point x* such that all the iterates of T converge to x*, uniformly on any bounded subset of X. If, in addition, some power of T is continuous at x*, then x* is a fixed point of T.
Simeon Reich, Alexander J. Zaslavski
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Asymptotic convergence of transmission energy forms

2003
Summary: We consider second-order transmission problems for prefractal layers approximating the Koch curve. We prove, in a suitable function space, the convergence of the solutions to these problems to the solutions of the related transmission problems on the fractal asymptotic curve.
LANCIA, Maria Rosaria, VIVALDI, Maria Agostina   +1 more
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Asymptotic Convergence and the Coulomb Interaction

Journal of Mathematical Physics, 1964
A definition of asymptotic convergence is given for nonrelativistic time-dependent scattering problems involving Coulomb potentials. Convergence proofs have been found both for potential and for n-body multichannel scattering. For pure Coulomb potential scattering, the Mo/ller wave matrix is computed explicitly and found to have its usual meaning.
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On almost sure convergence of asymptotic martingales

1993
Summary: The aim of this paper is to give a characterization of almost sure convergence for sequences of random variables, which do not necessarily have first moments. An example of such characterization was given by \textit{I. A. Dzhvarsheishvili} [Theory Probab. Appl. 33, 260-269 (1988)], where a notion of a \(D_v\)-amart was introduced. We show that
Kruk, Łukasz, Zięba, Wiesław (1950- )
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Asymptotic Convergence

2021
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On the Asymptotic Linear Convergence Speed of Anderson Acceleration Applied to ADMM

Journal of Scientific Computing, 2021
Hans De Sterck, Yunhui He
exaly