Browsing Τμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics by Title
Now showing items 315-334 of 1633
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Darboux polynomials for lotkavolterra systems in three dimensions
(2009)We consider LotkaVolterra systems in three dimensions depending on three real parameters. By using elementary algebraic methods we classify the Darboux polynomials (also known as second integrals) for such systems for ...
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Article
DCovTS: Distance covariance/correlation for time series
(2016)The distance covariance function is a new measure of dependence between random vectors. We drop the assumption of iid data to introduce distance covariance for time series. The R package dCovTS provides functions that ...
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Debts of Cyprus households
(2003)
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Article
Decay of Positive Waves of Hyperbolic Balance Laws
(2012)Historically, decay rates have been used to provide quantitative and qualitative information on the solutions to hyperbolic conservation laws. Quantitative results include the establishment of convergence rates for ...
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Decentralized Adaptive Control
(1992)A continuous time decentralized model reference adaptive controller is proposed for a large scale system composed of N interconnected linear subsystems with unknown parameters. Each local adaptive law utilizes a normalizing ...
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Conference Object
DECENTRALIZED ADAPTIVE CONTROL IN THE PRESENCE OF MULTIPARAMETER SINGULAR PERTURBATIONS AND BOUNDED DISTURBANCES.
(IEEE, 1983)
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Decentralized Adaptive Control of Interconnected Systems
(1986)The adaptive control of a class of large-scale systems formed of an arbitrary interconnection of subsystems with unknown parameters, nonlinearities, and bounded disturbances is investigated. It is first shown that no matter ...
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Article
Decentralized adaptive control of interconnected systems with reduced-order models
(1985)The adaptive control of interconnected systems whose subsystems possess slow and fast modes is investigated in the presence of external disturbances. A simple example is first used to show that a decentralized adaptive ...
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Conference Object
DECENTRALIZED ADAPTIVE ROUTING FOR VIRTUAL CIRCUIT NETWORKS USING STOCHASTIC LEARNING AUTOMATA.
(IEEE, 1988)The problem of routing virtual circuits according to dynamic probabilities in virtual-circuit packet-switched networks is considered. Queuing network models are introduced and performance measures are defined. A decentralized ...
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Decentralized indirect adaptive control of interconnected systems
(1991)Continuous time decentralized indirect adaptive controllers are proposed for a large‐scale system composed of N interconnected linear subsystems with unknown parameters. Each local adaptive law utilizes a normalizing signal ...
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Conference Object
Decentralized indirect adaptive control of interconnected systems
(Publ by American Automatic Control Council, 1990)Continuous-time decentralized indirect adaptive controllers are proposed for a large-scale system composed of N interconnected linear subsystems with unknown parameters. Each local adaptive law utilizes a normalizing signal ...
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Conference Object
Decentralized Reconfigurable Control for Large-Scale Systems with Application to a Segmented Telescope Test-Bed
(2003)Designing a decentralized reconfigurable control (DRC) system is considered for large-scale systems. The objective of the DRC system is to achieve performance requirements under normal and sensor failure situations. The ...
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Article
Decomposition of weighted Triebel-Lizorkin and Besov spaces on the ball
(2008)Weighted Triebel-Lizorkin and Besov spaces on the unit ball Bd in d with weights wμ(x)=(1-x2)μ-1/2, μ≥0, are introduced and explored. A decomposition scheme is developed in terms of almost exponentially localized polynomial ...
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Article
Decomposition systems for function spaces
(2003)Let Θ := {θIe : e ∈ E, I ∈ D} be a decomposition system for L2(ℝd) indexed over D, the set of dyadic cubes in ℝd, and a finite set E, and let θ̃ := {θ̃Ie : e ∈ E, I ∈ D} be the corresponding dual functionals. That is, for ...
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A deductive approach to the solution of the problem of optimal pairs trading from the viewpoint of stochastic control with time-dependent parameters
(2015)In a fairly recent paper (2008 American Control Conference, June 11-13, 1035-1039), the problem of dealing with trading in optimal pairs was treated from the viewpoint of stochastic control. The analysis of the subsequent ...
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Density ratio model selection
(2007)The density ratio model presumes that the log-likelihood ratio of two unknown densities is of some known parametric linear form. However, the choice of the functional form has an impact on both estimation and testing. The ...
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Density results with linear combinations of translates of fundamental solutions
(2009)In the present work, we investigate the approximability of solutions of elliptic partial differential equations in a bounded domain Ω by linear combinations of translates of fundamental solutions of the underlying partial ...
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Article
Dependence of entropy solutions in the large for the euler equations on nonlinear flux functions
(2007)We study the dependence of entropy solutions in the large for hyperbolic systems of conservation laws whose flux functions depend on a parameter vector μ. We first formulate an effective approach for establishing the L ...
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Article
The Dependent Random Weighting
(2014)
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