Results 241 to 250 of about 166,015,977 (264)

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.
openaire   +1 more source

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 ...
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +2 more sources

Radius and generic radius of convergence

2022
openaire   +1 more source

Definition of Radius of Convergence

The American Mathematical Monthly, 1967
openaire   +1 more source

Radius and generic radius of convergence

2010
openaire   +1 more source

THE RADIUS OF CONVERGENCE OF POWER PRODUCT EXPANSIONS

Analysis, 1991
Arnold Knopfmacher, Lutz Lucht
openaire   +1 more source

Convergence radius of Osada’s method under center-Hölder continuous condition

Applied Mathematics and Computation, 2014
Yongzhong Song
exaly