Results 221 to 230 of about 43,550 (252)

The radius of convergence of the p-adic sigma function

Mathematische Zeitschrift, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bannai, Kenichi, Kobayashi, Shinichi, Yasuda, Seidai   +2 more
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On the radius of convergence of cascaded analytic nonlinear systems

IEEE Conference on Decision and Control and European Control Conference, 2011
A complete analysis is presented of the radius of convergence of the cascade connection of two analytic nonlinear input-output systems represented as Fliess operators. Such operators are described by convergent functional series, which are indexed by words over a noncommutative alphabet.
Makhin Thitsa, W Steven Gray
exaly   +2 more sources

The Validity of Perturbation Series with Zero Radius of Convergence

Journal of Mathematical Physics, 1966
Although the perturbation expansion for the S-matrix of the Peres-model field theory has zero radius of convergence, it uniquely defines the S-matrix and is easily summable by the method of Padé approximants.
Baker, George A. jun., Chisholm, Roy
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A note on the radius of convergence of the USA algorithm

Journal of Economic Dynamics and Control, 1989
The authors described previously an algorithm termed the method of updated successive approximation, or USA for short [ibid. 9, No.2, 127- 137 (1985; Zbl 0663.90011)]. USA is a fixed-point algorithm that converges to the true equilibrium for an arbitrary choice of initial conditions.
Khilnani, Arvind, Tse, Edison T. S.
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The radius of convergence of the Lamé function

2019
We consider the radius of convergence of a Lamé function, and we show why Poincaré-Perron theorem is not applicable to the Lamé equation.
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Maximum radius of convergence perturbation theory

The Journal of Chemical Physics, 2000
An ab initio method is introduced, called the maximum radius of convergence (MAXRc) perturbation theory, that exploits the added degrees of freedom permitted with flexible energy denominator perturbation theory [J. Chem. Phys. 109, 7725 (1998)] by defining the energy-denominator factors of a Rayleigh–Schrödinger perturbative expansion to be ...
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Variational bounds on the radius of convergence of the born series

Chemical Physics, 1973
Abstract The radius of convergence of the Born series for potential scattering problems is discussed in terms of the eigen-values of the scattering integral equation. Variational procedures yielding upper and lower bounds for these eigen-values are introduced.
David J. Malik, John H. Weare
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The radius of convergence of dynamical mean-field theory

Physica B: Condensed Matter, 2002
The dynamical mean-field theory (DMFT) maps the periodic Anderson-model for infinite U onto a single impurity model with an effective band. This effective band is approximately described by a self-avoiding loop through the lattice with a local scattering matrix and can be written as a power series in that matrix times the unperturbed nearest neighbor ...
Hellmut Keiter, Dirk Otto
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A proof of Terras’ conjecture on the radius of convergence of the Ihara zeta function

Discrete Mathematics, 2018
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exaly   +2 more sources

Equation of State Beyond the Radius of Convergence of the Virial Expansion

Physical Review Letters, 2012
The well-known problem of the virial expansion low-density limitation is considered within Mayer's cluster expansion method. The expression for the configuration integral and the corresponding equation of state are presented based on this approach but not limited by the convergence radius of the series for density and activity. When taking into account
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