Results 31 to 40 of about 2,101,232 (306)

Reiterated periodic homogenization of integral functionals with convex and nonstandard growth integrands [PDF]

open access: yesOpuscula Mathematica, 2021
Multiscale periodic homogenization is extended to an Orlicz-Sobolev setting. It is shown by the reiteraded periodic two-scale convergence method that the sequence of minimizers of a class of highly oscillatory minimizations problems involving convex ...
Joel Fotso Tachago   +2 more
doaj   +1 more source

Solution of Positive Periodic Discrete Lyapunov Equations with Applications to the Balancing of Periodic Systems. [PDF]

open access: yes, 1997
The discrete-time positive periodic Lyapunov equations have important applications in the balancing and potentially also in the model reduction of discrete-time periodic systems.
A. Varga, Varga, A., Andreas Varga
core   +1 more source

Realization of universal periodic sequence generator on FPGA [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2016
This paper presents mathematical modeling and performance evaluation of different realizations of universal periodic digital signal generator based on infinite impulse response filter. The development kit used was Spartan 3E-Starter Board. Using
Petrović Miljan, Jovanović Milica
doaj   +1 more source

Computation of transfer function matrices of periodic systems [PDF]

open access: yes, 2002
We present a numerical approach to evaluate the transfer function matrices of a periodic system corresponding to lifted state-space representations as constant systems.
A. Varga, Varga, Andras
core   +1 more source

Dynamical behavior of one rational fifth-order difference equation

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2023
In this paper, we study the qualitative behavior of the rational recursive equation \begin{equation*} x_{n+1}=\frac{x_{n-4}}{\pm1\pm x_{n}x_{n-1}x_{n-2}x_{n-3}x_{n-4}}, \quad n \in \mathbb{N}_{0}:=\{0\}\cup\mathbb N, \end{equation*} where the initial ...
B. Ogul, D. Simsek
doaj   +1 more source

On computing minimal realizations of periodic descriptor systems [PDF]

open access: yes, 2007
: We propose computationally efficient and numerically reliable algorithms to compute minimal realizations of periodic descriptor systems. The main computational tool employed for the structural analysis of periodic descriptor systems (i.e., reachability
Andras Varga, Varga, Andreas
core   +1 more source

DNA Motifs and Sequence Periodicities

open access: yesIn Silico Biology: Journal of Biological Systems Modeling and Multi-Scale Simulation, 2006
Genomic DNA sequences contain a wealth of information about the bendability and curvature of the DNA molecule. For example, the well-known 10–11 bp periodicities within genomes can be attributed to supercoiled structures or wrapping around nucleosomes.
Lokesh Kumar   +2 more
openaire   +3 more sources

Some basic properties of the generalized bi-periodic Fibonacci and Lucas sequences

open access: yesAdvances in Difference Equations, 2020
In this paper, we consider a generalization of Horadam sequence {wn} $\{ w_{n} \} $ which is defined by the recurrence relation wn=χ(n)wn−1+cwn−2 $w_{n}=\chi ( n ) w_{n-1}+cw_{n-2}$, where χ(n)=a $\chi ( n ) =a$ if n is even, χ(n)=b $\chi ( n ) =b$ if n ...
Elif Tan, Ho-Hon Leung
doaj   +1 more source

Detection of latent sequence periodicities

open access: yesNucleic Acids Research, 1990
A method is proposed for the automatic detection of serial periodicities in a linear sequence. Its application to DNA subtelomeric sequences from two lower eukaryotes, P.falciparum and S.cerevisiae, reveals ordered patterns organised in hierarchical periodicities, not easily recognizable by other methods.
PIZZI E, LIUNI S, FRONTALI C
openaire   +3 more sources

An overview of recent developments in computational methods for periodic systems [PDF]

open access: yes, 2007
: At the First IFAC Workshop on Periodic Systems (Como, Italy, 2001), a state of the art survey of computational methods for periodic systems has been presented (Varga and Van Dooren, 2001).
Andras Varga, Varga, Andreas
core   +1 more source

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