Browsing Τμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics by Title
Now showing items 1606-1625 of 1633
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Article
Wavelet instruments for efficiency gains in generalized method of moment models
(2007)We propose a simple computational method in the context of generalized method of moments for improving the efficiency of regression coefficient estimates. The gains in efficiency arise by incorporating additional moment ...
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Article
Wavelet methods for continuous-time prediction using Hilbert-valued autoregressive processes
(2003)We consider the prediction problem of a continuous-time stochastic process on an entire time-interval in terms of its recent past. The approach we adopt is based on the notion of autoregressive Hilbert processes that ...
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Article
Wavelet packet transfer function modelling of nonstationary time series
(2002)This article shows how a non-decimated wavelet packet transform (NWPT) can be used to model a response time series, Yt in terms of an explanatory time series, Xt. The proposed computational technique transform the explanatory ...
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Article
Wavelet shrinkage for natural exponential families with quadratic variance functions
(2001)We propose a wavelet shrinkage methodology for univariate natural exponential families with quadratic variance functions, covering the Gaussian, Poisson, gamma, binomial, negative binomial and generalised hyperbolic secant ...
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Article
Wavelet thresholding via a Bayesian approach
(1998)We discuss a Bayesian formalism which gives rise to a type of wavelet threshold estimation in nonparametric regression. A prior distribution is imposed on the wavelet coefficients of the unknown response function, designed ...
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Article
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Article
Weak convergence of dependent empirical measures with application to subsampling in function spaces
(1999)Consider the problem of inference for a parameter of a stationary time series, where the parameter takes values in a metric space (such as a function space). In this paper, we develop asymptotic theory based on subsampling ...
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Article
Weakly compressible Poiseuille flows of a Herschel-Bulkley fluid
(2009)In this work, we derive approximate semi-analytical solutions of the steady, creeping, weakly compressible plane and axisymmetric Poiseuille flows of a Herschel-Bulkley fluid. Since the flow is weakly compressible, the ...
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Article
Weil representations and some nonreductive dual pairs in symplectic and unitary groups
(2011)We study the restriction of the Weil representations of symplectic and unitary groups to subgroups that are the centralizers of certain elements, and show that these are multiplicity free. This work is along the line of ...
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Conference Object
What is L1 adaptive control
(2013)Recently, a class of adaptive control schemes called L1 Adaptive Control (L1-AC) has been proposed and widely advertised in aerospace control for achieving fast and robust adaptation and better performance than the existing ...
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Article
The Yang-Mills Heat Semigroup on Three-Manifolds with Boundary
(2013)Long time existence and uniqueness of solutions to the Yang-Mills heat equation is proven over a compact 3-manifold with smooth boundary. The initial data is taken to be a Lie algebra valued connection form in the Sobolev ...
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Article
Zero distribution of Bergman orthogonal polynomials for certain planar domains
(2003)Let G be a simply connected domain in the complex plane bounded by a closed Jordan curve L and let Pn, n ≥ 0, be polynomials of respective degrees n = 0, 1,... that are orthonormal in G with respect to the area measure ...
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Article
The zeros of certain Lommel functions
(2012)Lommel's function s μ,ν(z) is a particular solution of the differential equation z 2y″ + zy′ + (z 2 - ν 2)y = z μ+1. Here we present estimates and monotonicity properties of the positive zeros of s μ-1/2,1/2(z) when μ ∈ ...
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Doctoral Thesis
Ανάλυση μεθόδου πεπερασμένων όγκων για τις ασυμπίεστες εξισώσεις Navier-Stokes
(Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, 2006)
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Doctoral Thesis
Ανάπτυξη μεθόδου πολυκριτηριακής ανάλυσης για την επεξεργασία των μεταχειρισμένων ελαστικών Νταής Δημήτριος
(Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Χημικών Μηχανικών. Τομέας Χημικών Επιστημών, 1998)
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Doctoral Thesis
Ανάπτυξη παραλληλοποιήσιμων υπολογιστικών μεθοδολογιών χρονο-βηματισμού για την ανάλυση και τον σχεδιασμό δικτύων νευρώνων πολλαπλών χωροχρονικών κλιμάκων και πολύ μεγάλης κλίμακας Κωνσταντίνου Σπηλιώτη
(Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Εφαρμοσμένων Μαθηματικών και Φυσικών Επιστημών. Τομέας Μηχανικής, 2009)
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Book
Διαφορικές μορφές Θεωρια και εφαρμογές Differential forms and applications Manfredo P. do Carmo
(Εκδόσεις L.B., 2010)
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Book
Εισαγωγή στη θεωρία συναρτήσεων spline μιας μεταβλητής
(Εκδόσεις Πανεπιστημίου Πατρών, 2004)
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Doctoral Thesis
"Εισαγωγή στη μετά-ανάλυση" "και εφαρμογές" Ιωάννης Α. Μαμάης
(θνικό Μετσόβιο Πολυτεχνείο. Σχολή Εφαρμοσμένων Μαθηματικών και Φυσικών Επιστημών. Τομέας Μαθηματικών, 2010)
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Book
Εφαρμοσμένη στατιστική ανάλυση & στοιχεία πιθανοτήτων
(MIKE & MIKE Printings, 2012)