Results 71 to 80 of about 14,489,673 (236)

Decomposition method and its application to the extremal problems

Archives of Control Sciences, 2016
In the article solution of the problem of extremal value of x(τ) is presented, for the n-th order linear systems. The extremum of x(τ) is considered as a function of the roots s1, s2, ... sn of the characteristic equation.
Górecki Henryk, Zaczyk Mieczysław
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Experimental identification of structural properties of elastic beam with homogeneous and uniform cross section

Nihon Kikai Gakkai ronbunshu, 2015
Dynamic model is necessary to predict the product performance in numerical simulation; strength of structure, noise and vibration. An experiment must be performed to identify the model parameter such as structural properties of installed or completed ...
Masami MATSUBARA, Akihiro AONO, Shozo KAWAMURA   +2 more
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A switch convergence for a small perturbation of a linear recurrence equation

, 2019
In this article we study a small random perturbation of a linear recurrence equation. If all the roots of its corresponding characteristic equation have modulus strictly less than one, the random linear recurrence goes exponentially fast to its limiting ...
Barrera, Gerardo, Liu, Shuo
core  

Structurally Invariant Higher-Order Ince-Gaussian Beams and Their Expansions into Hermite-Gaussian or Laguerre-Gaussian Beams

Applied Sciences
Paraxial beam modes, which propagate in space and focus without changing their transverse intensity pattern, are of great value for multiplexing transmitted data in optical communications, both in waveguides and in free space.
Eugeny G. Abramochkin, Victor V. Kotlyar, Alexey A. Kovalev   +2 more
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Stability Switches of A Neural Field Model: An Algebraic Study On The Parameters

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020
In thispaper, a special case for a delayed neural field model is considered. Afterconstructing its characteristic equation a stability analysis is made. UsingRouth-Hurwitz criterion, some conditions for characteristic equation are givenfor the stability ...
Berrak Özgür
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Existence and stability of solutions for nonlinear Mecking-Lucke-Grilhe equations

Electronic Journal of Differential Equations, 2011
In this article, we present the nonlinear Mecking-Lucke-Grilhe model describing the temporal evolution for simple and multi-instabilities of plastic deformation of stressed monocristal. This model extends the linear problem considered in [9, 13, 14].
Ali Alriyabi, Said Hilout
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Boyer-Finley equation and systems of hydrodynamic type

, 2004
We reduce Boyer-Finley equation to a family of compatible systems of hydrodynamic type, with characteristic speeds expressed in terms of spaces of rational functions.
Ferapontov, E., Korotkin, D., Shramchenko, V.   +2 more
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An asymptotic result for linear nonhomogeneous mixed type differential equation [PDF]

E-Journal of Analysis and Applied Mathematics
We consider a nonhomogeneous linear mixed type differential equation with variable coefficients and establish an asymptotic result for its solutions. Our result is obtained by the use of a solution of the so-called generalized characteristic equation of ...
Ali Fuat Yeniçerioğlu
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Conservation Equations and Characteristics

, 2016
A conservation law for a physical system states that a certain quantity (e.g., mass, energy, or momentum) is independent of time. For continuous systems such as fluids or gases, these global quantities can be defined as integrals of density functions. The conservation law then translates into a local form, as a PDE for the density function.
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Stability of p.c.m. characteristic equations

Electronics Letters, 1966
The stability criteria of an oscillator control system suitable for a network of p.c.m. systems are examined. The system is shown to be stable for a wide range of signal-path delay.
P.C. Parks, M.R. Miller
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