Results 31 to 40 of about 9,489,153 (244)
Design of Fault Detection Filters for Periodic Systems [PDF]
, 2004 We propose a numerically reliable computational approach to design fault detection filters for periodic systems. This approach is based on a new numerically stable algorithm to compute least order annihilators without explicitly building time-invariant ...
A. Varga, Varga, Andras
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On Balancing and Order Reduction of Unstable Periodic Systems [PDF]
, 2001 Abstract: We consider the direct application of balancing techniques to unstable periodic systems by extending the balancing concepts to arbitrary periodic systems. We extend first the balancing concepts to unstable discrete-time systems by defining the
A. Varga, Varga, Andras
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First order impulsive differential inclusions with periodic conditions
Electronic Journal of Qualitative Theory of Differential Equations, 2008 In this paper, we present an impulsive version of Filippov's Theorem for the first-order nonresonance impulsive differential inclusion $$ \begin{array}{rlll} y'(t)-\lambda y(t) &\in& F(t,y(t)), &\hbox{ a.e. } \, t\in J\backslash \{t_{1},\ldots,t_{m}\},\\
John Graef, Abdelghani Ouahab
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Inversion-based synthesis algorithm of periodic fault detection and isolation filters [PDF]
, 2013 A numerically reliable lifting-free computational method is proposed to solve fault detection and isolation problems for periodic systems using a model matching approach.
A. Varga, Varga, Andreas
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Second order homogenization of quasi-periodic structures
Vietnam Journal of Mechanics, 2018 The paper develops a general framework to derive the effective properties of quasi-periodic elastic medium. By using the asymptotic expansion method, the solution is expanded to the second order by solving a sequence of minimization problems.
Duc Trung Le, Jean-Jacques Marigo
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Periodic solutions of nonlinear second-order difference equations
Advances in Difference Equations, 2005 We establish conditions for the existence of periodic solutions of nonlinear, second-order difference equations of the form y(t+2)+by(t+1)+cy(t)=f(y(t)), where c≠0 and f:â„Â→℠is continuous.
Debra Lynn Etheridge +1 more
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On computing minimal realizations of periodic descriptor systems [PDF]
, 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
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Computation of Generalized Inverses of Periodic Systems [PDF]
, 2004 We address the numerically reliable computation of generalized inverses of periodic systems. The underlying inverses are defined via the corresponding lifted repesentations.
A. Varga, Varga, Andras
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Periodic perturbations of non-conservative second order differential equations
Electronic Journal of Qualitative Theory of Differential Equations, 2002 Consider the Lienard system $u''+f(u) u'+g(u)=0$ with an isolated periodic solution. This paper concerns the behavior of periodic solutions of Lienard system under small periodic perturbations.
R. A. Chouikha
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PERIODIC AND ALMOST-PERIODIC SOLUTIONS OF RECURRENT MULTIPLICATIVE SECOND-ORDER EQUATIONS
Современная наука и инновации, 2022 Solutions of the recurrent multiplicative equation of a special kind are considered. The values of the parameters of the equation are defined, for which the solutions are periodic, almost periodic or combine properties of a geometric progression and ...
Victor Grigorievich Rudenko +2 more
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