Results 11 to 20 of about 51,902 (232)

A sufficient condition for stability of the calculation of parameters of aperiodic processes based on second order difference equations

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012
The stability problem for the calculation of parameters of the second order damping aperiodic processes is considered. The numerical method of the second order aperiodic process parameters determination, based on iterative procedure of difference equation
Vladimir E Zoteev
doaj   +3 more sources

Broadband Mid-IR superabsorption with aperiodic polaritonic photonic crystals [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2014
We propose an approach for broadband near-perfect absorption with aperiodic-polaritonic photonic crystals (PCs) operating in the phonon-polariton gap of the constituent material.
Devarapu G. C. R., Foteinopoulou S.
doaj   +1 more source

Aperiodically Intermittent Control Strategy and Adaptive Synchronization of Neural Networks With Inertial and Memristive Terms

open access: yesIEEE Access, 2023
The problem of adaptive aperiodic intermittent synchronization scheme is studied for inertial memristive delayed neural networks by using a piecewise Lyapunov function in this article.
Mei Liu   +3 more
doaj   +1 more source

Local symmetry dynamics in one-dimensional aperiodic lattices [PDF]

open access: yes, 2013
A unifying description of lattice potentials generated by aperiodic one-dimensional sequences is proposed in terms of their local reflection or parity symmetry properties.
Diakonos, F. K.   +3 more
core   +2 more sources

Anti-Powers in Infinite Words [PDF]

open access: yes, 2018
In combinatorics of words, a concatenation of $k$ consecutive equal blocks is called a power of order $k$. In this paper we take a different point of view and define an anti-power of order $k$ as a concatenation of $k$ consecutive pairwise distinct ...
Fici, Gabriele   +3 more
core   +3 more sources

WHAT IS...Aperiodic Order?

open access: yesNotices of the American Mathematical Society, 2016
This article provides a brief introductory account of the theory of aperiodic order.
Baake, Michael   +2 more
openaire   +2 more sources

$m$th-order Fisher-KPP equation with free boundaries and time-aperiodic advection

open access: yesMathematics in Applied Sciences and Engineering, 2021
In this paper, we investigate a $m$th-order Fisher-KPP equation with free boundaries and time-aperiodic advection. Considering the influence of advection term and initial conditions on the long time behavior of solutions, we obtain spreading-vanishing ...
Changqing Ji, Dandan Zhu, Jingli Ren
doaj   +1 more source

FO-definable transformations of infinite strings [PDF]

open access: yes, 2016
The theory of regular and aperiodic transformations of finite strings has recently received a lot of interest. These classes can be equivalently defined using logic (Monadic second-order logic and first-order logic), two-way machines (regular two-way and
Dave, Vrunda   +2 more
core   +2 more sources

Schrödinger’s What is Life?—Complexity, Cognition and the City

open access: yesEntropy, 2023
This paper draws attention to four central concepts in Schrödinger’s ‘What is Life?’ that have not, as yet, received sufficient attention in the domain of complexity: delayed entropy, free energy, order out of order and aperiodic crystal.
Juval Portugali
doaj   +1 more source

Exciton Optical Absorption in Self-Similar Aperiodic Lattices [PDF]

open access: yes, 1994
Exciton optical absorption in self-similar aperiodic one-dimensional systems is considered, focusing our attention on Thue-Morse and Fibonacci lattices as canonical examples.
C. L. Roy   +24 more
core   +3 more sources

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