EuDML | Browse

Items

All a b c d e f g h i j k l m n o p q r s t u v w x y z Other

Displaying 21 – 40 of 72

The internal stabilization by noise of the linearized Navier-Stokes equation*

Viorel Barbu (2011)

ESAIM: Control, Optimisation and Calculus of Variations

One shows that the linearized Navier-Stokes equation in $𝒪 \subset R^{d}, d \geq 2$ , around an unstable equilibrium solution is exponentially stabilizable in probability by an internal noise controller $V (t, ξ) = \sum_{i = 1}^{N} V_{i} (t) ψ_{i} (ξ) {\dot{β}}_{i} (t)$ , $ξ \in 𝒪$ , where ${β_{i}}_{i = 1}^{N}$ are independent Brownian motions in a probability space and ${ψ_{i}}_{i = 1}^{N}$ is a system of functions on $𝒪$ with support in an arbitrary open subset $𝒪_{0} \subset 𝒪$ . The stochastic control input ${V_{i}}_{i = 1}^{N}$ is found in feedback form. One constructs also a tangential boundary noise controller which exponentially stabilizes in probability the equilibrium solution. ...

The invariant polynomial assignment problem for linear periodic discrete-time systems

Leopoldo Jetto, Sauro Longhi (1996)

Kybernetika

The matching problem for behavioral systems

Giuseppe Conte, Anna Maria Perdon (1995)

Kybernetika

The nonlinear regulator problem for constant signals

Vlad Ionescu, Vladimir Răsvan (1991)

Kybernetika

The order reduction and robust D-stability analysis of discrete uncertain time-delay systems by time-scale separation

Shing-Tai Pan (2003)

Control and Cybernetics

The partial non interacting problem: Structural and geometric solutions

Juan Carlos Martínez García, Michel Malabre, Rabah Rabah (1994)

Kybernetika

The permanence and extinction of a discrete predator-prey system with time delay and feedback controls.

Li, Qiuying, Liu, Hanwu, Zhang, Fengqin (2010)

Advances in Difference Equations [electronic only]

The permanence in a single species nonautonomous system with delays and feedback control.

Feng, Xiaomei, Zhang, Fengqin (2010)

Discrete Dynamics in Nature and Society

The pole placement equation. A survey

Vladimír Kučera (1994)

Kybernetika

The principle of the largest terms and quantum large deviations

Oleg V. Gulinsky (2003)

Kybernetika

We give an approach to large deviation type asymptotic problems without evident probabilistic representation behind. An example provided by the mean field models of quantum statistical mechanics is considered.

The problem of the number of switches in parabolic equations with control

Andrzej Karafiat (1977)

Annales Polonici Mathematici

The realization of input-output maps using bialgebras.

Robert Grossmann, Richard G. Larson (1992)

Forum mathematicum

The relationship between the infinite eigenvalue assignment for singular systems and the solvability of polynomial matrix equations

Tadeusz Kaczorek (2003)

International Journal of Applied Mathematics and Computer Science

Two related problems, namely the problem of the infinite eigenvalue assignment and that of the solvability of polynomial matrix equations are considered. Necessary and sufficient conditions for the existence of solutions to both the problems are established. The relationships between the problems are discussed and some applications from the field of the perfect observer design for singular linear systems are presented.

The role of parameter constraints in EE and OE methods for optimal identification of continuous LTI models

Witold Byrski, Jedrzej Byrski (2012)

International Journal of Applied Mathematics and Computer Science

The paper presents two methods used for the identification of Continuous-time Linear Time Invariant (CLTI) systems. In both methods the idea of using modulating functions and a convolution filter is exploited. It enables the proper transformation of a differential equation to an algebraic equation with the same parameters. Possible different normalizations of the model are strictly connected with different parameter constraints which have to be assumed for the nontrivial solution of the optimal...

The selection of input and output schemes for a system and the model projection problems

Nicos Karcanias (1994)

Kybernetika

The simplex method for nonlinear sliding mode control.

Bartolini, G., Parodi, F., Utkin, V.I., Zolezzi, T. (1999)

Mathematical Problems in Engineering

The special Schubert calculus is real.

Sottile, Frank (1999)

Electronic Research Announcements of the American Mathematical Society [electronic only]

The squares of the Laplacian-Dirichlet eigenfunctions are generically linearly independent

Yannick Privat, Mario Sigalotti (2010)

ESAIM: Control, Optimisation and Calculus of Variations

The paper deals with the genericity of domain-dependent spectral properties of the Laplacian-Dirichlet operator. In particular we prove that, generically, the squares of the eigenfunctions form a free family. We also show that the spectrum is generically non-resonant. The results are obtained by applying global perturbations of the domains and exploiting analytic perturbation properties. The work is motivated by two applications: an existence result for the problem of maximizing the rate of...

The structure of nonlinear time delay systems

Luis Alejandro Márquez-Martínez, Claude H. Moog, Martín Velasco-Villa (2000)

Kybernetika

Multivariable nonlinear systems with time delays are considered. The delays are supposed to be constant but not commensurate. The goal of this paper is to give a structure algorithm which displays some system invariants for this class of systems.

The sufficient condition for linear constant time-lag systems to be normal systems

J. Kloch (1976)

Annales Polonici Mathematici

Currently displaying 21 – 40 of 72

Previous Page 2 Next