Results 31 to 40 of about 331,106 (326)

Large Order Behavior of Quasiclassical Euclidean Gravity in Minisuperspace Models [PDF]

open access: yes, 1996
We demonstrate in two minisuperspace models that a perturbation expansion of quasiclassical Euclidean gravity has a factorial dependence on the order of the term at large orders. This behavior indicates that the expansion is an asymptotic series which is
Fugleberg, T., Zhitnitsky, A.
core   +2 more sources

An asymptotic expansion for a ratio of products of gamma functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
An asymptotic expansion of a ratio of products of gamma functions is derived. It generalizes a formula which was stated by Dingle, first proved by Paris, and recently reconsidered by ...
Wolfgang Bühring
doaj   +1 more source

An order verification method for truncated asymptotic expansion solutions to initial value problems

open access: yesAlexandria Engineering Journal, 2022
The focus of this paper is to obtain explicit solutions to initial value problems, where numerical methods cannot provide one, and to verify the accuracy orders of the explicit solutions.
Sudi Mungkasi
doaj   +1 more source

Embedding asymptotically expansive systems

open access: yesMonatshefte für Mathematik, 2017
We prove a Krieger like embedding theorem for asymptotically expansive systems with the small boundary property. We show that such a system $(X; T)$ embeds in the $K$-full shift with $h_{top}(T) < \log K $ and $\sharp Per_n(X; T) \leq \sharp Per_n(\{1,...,K\}^{\mathbb{Z}}; )$ for any integer $n$.
openaire   +4 more sources

On the full asymptotic of analytic torsion

open access: yes, 2018
The purpose of this article is to study the asymptotic expansion of Ray-Singer analytic tosion associated with increasing powers p of a given positive line bundle.
Finski, Siarhei
core   +1 more source

An efficient asymptotic extraction approach for the green's functions of conformal antennas in multilayered cylindrical media [PDF]

open access: yes, 2010
Asymptotic expressions are derived for the dyadic Green's functions of antennas radiating in the presence of a multilayered cylinder, where analytic representation of the asymptotic expansion coefficients eliminates the computational cost of numerical ...
Cook, G.G., Khamas, S.K., Wu, J.
core   +1 more source

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg   +5 more
wiley   +1 more source

The Asymptotic Expansion Method via Symbolic Computation

open access: yesJournal of Applied Mathematics, 2012
This paper describes an algorithm for implementing a perturbation method based on an asymptotic expansion of the solution to a second-order differential equation. We also introduce a new symbolic computation system which works with the so-called modified
Juan F. Navarro
doaj   +1 more source

Bi-asymptotic c-expansivity

open access: yesJournal of Mathematical Analysis and Applications
12 ...
Nageshwar, Rohit   +2 more
openaire   +2 more sources

Scattering and small data completeness for the critical nonlinear Schroediger equation

open access: yes, 2006
We prove Asymptotic Completeness of one dimensional NLS with long range nonlinearities.
Avy Soffer   +12 more
core   +1 more source

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