Browsing Τμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics by Title
Now showing items 700-719 of 1633
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Article
Macroscopic analysis of traffic flow of automated vehicles
(1997)In the first part of this study a macroscopic traffic flow model of automated vehicles is developed by using the microscopic control laws that govern the longitudinal motion of individual vehicles together with the dynamics ...
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Conference Object
Macroscopic modeling of automated highway systems
(IEEE, 1997)An accurate macroscopic traffic flow model of automated highways is necessary not only for analyzing the collective dynamical behavior of automated vehicles but also for designing control laws to improve system level ...
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Conference Object
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Article
Mallows’ quasi-likelihood estimation for log-linear Poisson autoregressions
(2016)We consider the problems of robust estimation and testing for a log-linear model with feedback for the analysis of count time series. We study inference for contaminated data with transient shifts, level shifts and additive ...
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Article
Manifolds with large isotropy groups
(2011)We classify all simply connected Riemannian manifolds whose isotropy groups act with cohomogeneity less or equal to two. © de Gruyter 2011.
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Conference Object
Mapping of data obtained on driving simulator to reality based on simulator validation results (WIP)
(The Society for Modeling and Simulation International, 2014)The use of a driving simulator can be preferable to on-road experiments for cost-efficient rapid prototype testing or dangerous driving scenario evaluations. However, the mismatch of the simulator and the actual driving ...
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Article
A markov chain monte carlo convergence diagnostic using subsampling
(1999)A new diagnostic procedure for assessing convergence of a Markov chain Monte Carlo (MCMC) simulation is proposed. The method is based on the use of subsampling for the construction of confidence regions from asymptotically ...
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Article
A markovian local resampling scheme for nonparametric estimators in time series analysis
(2001)In this paper we study the properties of a pth-order Markovian local resampling procedure in approximating the distribution of nonparametric (kernel) estimators of the conditional expectation m(x
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Article
Master symmetries and R-matrices for the Toda lattice
(1990)A hierarchy of vector fields (master symmetries) and homogeneous nonlinear Poisson structures associated with the Toda lattice are constructed and the various connections between them are investigated. These brackets may ...
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Mathematical foundation of the MFS for certain elliptic systems in linear elasticity
(2009)The method of fundamental solutions (MFS) is a Trefftz-type technique in which the solution of an elliptic boundary value problem is approximated by a linear combination of translates of fundamental solutions with singularities ...
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Mathematical modeling of the oxygen storage capacity phenomenon studied by CO pulse transient experiments over Pd/CeO2 catalyst
(2003)A mathematical model has been developed for the first time to study the oxygen storage capacity (OSC) phenomenon by the CO pulse injection technique over a 1 wt% Pd/CeO2 model catalyst in the 500-700°C range. A two-step ...
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Article
Matrix decomposition algorithms for elliptic boundary value problems: A survey
(2011)We provide an overview of matrix decomposition algorithms (MDAs) for the solution of systems of linear equations arising when various discretization techniques are applied in the numerical solution of certain separable ...
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Article
Matrix decomposition algorithms for modified spline collocation for Helmholtz problems
(2003)We consider the solution of various boundary value problems for the Helmholtz equation in the unit square using a nodal cubic spline collocation method and modifications of it which produce optimal (fourth-) order ...
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Article
A matrix decomposition MFS algorithm for axisymmetric biharmonic problems
(2005)We consider the approximate solution of axisymmetric biharmonic problems using a boundary-type meshless method, the Method of Fundamental Solutions (MFS) with fixed singularities and boundary collocation. For such problems, ...
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Article
A matrix decomposition MFS algorithm for axisymmetric potential problems
(2004)The method of fundamental solutions is a boundary-type meshless method for the solution of certain elliptic boundary value problems. By exploiting the structure of the matrices appearing when this method is applied to ...
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Article
A matrix decomposition MFS algorithm for biharmonic problems in annular domains
(2004)The Method of Fundamental Solutions (MFS) is a boundary-type method for the solution of certain elliptic boundary value problems. In this work, we develop an efficient matrix decomposition MFS algorithm for the solution ...
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Article
A matrix decomposition MFS algorithm for certain linear elasticity problems
(2006)We propose an efficient matrix decomposition Method of Fundamental Solutions algorithm for the solution of certain two-dimensional linear elasticity problems. In particular, we consider the solution of the Cauchy-Navier ...
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Article
A matrix decomposition MFS algorithm for problems in hollow axisymmetric domains
(2006)In this work we apply the Method of Fundamental Solutions (MFS) with fixed singularities and boundary collocation to certain axisymmetric harmonic and biharmonic problems. By exploiting the block circulant structure of the ...
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Conference Object
Matrix decomposition MFS algorithms
(2006)We describe the application of the Method of Fundamental Solutions (MFS) to elliptic boundary value problems in rotationally symmetric problems. In particular, we show how efficient matrix decomposition MFS algorithms can ...
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Article
Matrix decomposition MFS algorithms for elasticity and thermo-elasticity problems in axisymmetric domains
(2007)In this work, we propose an efficient matrix decomposition algorithm for the Method of Fundamental Solutions when applied to three-dimensional boundary value problems governed by elliptic systems of partial differential ...