Results 11 to 20 of about 880,492 (299)

Time-dependent analysis of virtual waiting time behaviour in discrete time queues [PDF]

, 2005
Discrete time queueing models have been shown previously to be of practical use for modelling the approximate time-dependent behaviour of queue length in systems of the form M(t)/G/c.
Wall, A, Worthington, D J
core   +4 more sources

Rational approximation of discrete data with asymptomatic behaviour [PDF]

This thesis is concerned with the least-squares approximation of discrete data that appear to exhibit asymptotic behaviour. In particular, we consider using rational functions as they are able to display a number of types of asymptotic behaviour.
Cooper, Philip
core   +4 more sources

Single kick approximations for beam-beam deflections

Physical Review Special Topics. Accelerators and Beams, 1999
A six-dimensional symplectic beam-beam interaction map using finite discrete slices of a strong beam is extended to infinitesimal slices. The new map is calculated under the assumption of a longitudinal Gaussian distribution with approximations.
Takahiko Koyama
doaj   +1 more source

Uniform Approximation of Functions with Discrete Approximation Functionals

Journal of Approximation Theory, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chandler, Colston, Gibson, Archie G.
openaire   +1 more source

L2-Error Estimates of the Extrapolated Crank-Nicolson Discontinuous Galerkin Approximations for Nonlinear Sobolev Equations

Journal of Inequalities and Applications, 2010
We analyze discontinuous Galerkin methods with penalty terms, namely, symmetric interior penalty Galerkin methods, to solve nonlinear Sobolev equations.
Hyun Young Lee, Mi Ray Ohm, Jun Yong Shin   +2 more
doaj   +1 more source

Discrete-Time Semi-Markov Random Evolutions in Asymptotic Reduced Random Media with Applications

Mathematics, 2020
This paper deals with discrete-time semi-Markov random evolutions (DTSMRE) in reduced random media. The reduction can be done for ergodic and non ergodic media.
Nikolaos Limnios, Anatoliy Swishchuk
doaj   +1 more source

An Efficient Method for Approximation of Non-Rational Transfer Functions [PDF]

Electronics, 2013
A method for rational approximation of linear fractional order systems (LFOS) is presented in the present paper. The method is computationally efficient, flexible and effective, as is illustrated by numerous examples.
Milan R. Rapaić, Tomislav B. Šekara, Mihailo P. Lazarević   +2 more
doaj   +1 more source

Finite element analysis for microscale heat equation with Neumann boundary conditions [PDF]

Iranian Journal of Numerical Analysis and Optimization
In this paper, we explore the numerical analysis of the microscale heat equation. We present the characteristics of numerical solutions obtained through both semi- and fully-discrete linear finite element methods.
M.H. Hashim, A.J. Harfash
doaj   +1 more source

Approximate calculation of 8-point DCT for various scenarios of practical applications

EURASIP Journal on Image and Video Processing, 2021
In this paper, based on the parametric model of the matrix of discrete cosine transform (DCT), and using an exhaustive search of the parameters’ space, we seek for the best approximations of 8-point DCT at the given computational complexities by taking ...
Dariusz Puchala
doaj   +1 more source

Homogeneous Discrete-Time Approximation

IFAC-PapersOnLine, 2019
Abstract In this paper we study some stability properties of discrete-time systems whose transition map can be approximated by a discrete-time homogeneous transition map. This allows us to identify qualitative stability properties of discrete-time systems by only knowing the discrete-time homogeneity degree of its approximation.
Sanchez, Tonametl, Efimov, Denis, Polyakov, Andrey, Moreno, Jaime   +3 more
openaire   +2 more sources