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- ItemDiffraction of stochastic point sets : exactly solvable examples(Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik, 2008) Baake, Michael; Birkner, Matthias; Moody, Robert V.Stochastic point sets are considered that display a diffraction spectrum of mixed type, with special emphasis on explicitly computable cases together with a unified approach of reasonable generality. Several pairs of autocorrelation and diffraction measures are discussed that show a duality structure that may be viewed as analogues of the Poisson summation formula for lattice Dirac combs.
- ItemKernmagnetische Ordnung in Metallen mit starker Hyperfeinwechselwirkung : Schlussbericht(Dresden : Forschungszentrum Dresden-Rossendorf, 2000) Pobell, Frank[no abstract available]
- ItemDiscretisation of the Maxwell equations on tetrahedral grids(Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik, 2003) Schefter, JürgenThe aim of this report is to describe the discretisation of the Maxwell equations on tetrahedral grids with corresponding dual Voronoi cells to explain the resulting program. The symmetry of the coefficients of the matrix is proven. A small example shows an input file and same other details.
- ItemNiederdimensionale thermoelektrische Materialien auf der Basis halbleitender Silizide und Silizium/Germanium-Übergittern : Abschlußbericht zum Verbundvorhaben Niederdimensionale thermoelektrische Materialien für Energiewandler(Hannover : Technische Informationsbibliothek (TIB), 2003) Heinrich, Armin; Schumann, J.[no abstract available]
- ItemSimple vector bundles on plane degenerations of an elliptic curve(Oberwolfach : Mathematisches Forschungsinstitut Oberwolfach, 2009) Bodnarchuk, Lesya; Drozd, Yuriy; Greuel, Gert-MartinIn 1957 Atiyah classifed simple and indecomposable vector bundles on an elliptic curve. In this article we generalize his classifcation by describing the simple vector bundles on all reduced plane cubic curves. Our main result states that a simple vector bundle on such a curve is completely determined by its rank, multidegree and determinant. Our approach, based on the representation theory of boxes, also yields an explicit description of the corresponding universal families of simple vector bundles.
- ItemOptimierung von Strahlneutralisationsverfahren auf der Basis eines induktiven angeregten HF-Plasmabrückenneutralisators und eines bipolaren Beamschalters : Abschlußbericht zum Vorhaben(Hannover : Technische Informationsbibliothek (TIB), 2007) Scholze, F.[no abstract available]
- ItemAbschlußbericht 2007 zum SMWK-geförderten Verbundprojekt "Aluminiumwerkstoffe mit nachhaltiger ultrahydrophober Oberflächengestaltung" zwischen der Technischen Universität Dresden, Institut für Werkstoffwissenschaft (IfWW) und dem Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)(Dresden : Leibniz-Institut für Polymerforschung, 2007) Worch, Hartmut; Simon, Frank; Blank, Christa; Thieme, Michael; Höhne, Susanne; Frenzel, Ralf[no abstract available]
- ItemHeuristic parameter selection based on functional minimization : optimality and model function approach(Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik, 2009) Lu, Shuai; Mathé, KarstenWe analyze some parameter choice strategies in regularization of inverse problems, in particular the (modified) L-curve method and a variant of the Hanke-Raus rule. These are heuristic rules, free of the noise level, and they are based on minimization of some functional. We analyze these functionals, and we prove some optimality results under general smoothness conditions. We also devise some numerical approach for finding the minimizers, which uses model functions. Numerical experiments indicate that this is an efficient numerical procedure.
- ItemHomological properties of piecewise hereditary algebras(Oberwolfach : Mathematisches Forschungsinstitut Oberwolfach, 2009) Happel, Dieter; Zacharia, DanLet Delta be a finite dimensional algebra over an algebraically closed field k. We will investigate homological properties of piecewise hereditary algebras Delta. In particular we give lower and upper bounds of the strong global dimension, show the behavior of the strong global under one point extensions and tilting. Moreover we show that the pieces of mod Delta have Auslander-Reiten sequence.
- ItemMesoporenfreie heteroatomhaltige Molekularsieb-Membranen für die Stofftrennung und für den Einsatz im katalytischen Membranreaktor : Abschlussbericht des BMBF-Projektes ; Laufzeit des Vorhabens: 01.01.2004 - 31.12.2005(Hannover : Technische Informationsbibliothek (TIB), 2006) Noack, Manfred[no abstract available]