Browsing Institut für Mathematik by Title
Now showing items 237-256 of 329
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1999-07-01BuchPade's Approximation of Sampled Data Controllers In this work we consider a sampled data control system consisting of a continuous time plant and a controller, which is designed as: A uniform sampler plus a discrete time controller plus a zero order hold synchronizer. ...
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2005-10-21BuchParametric Linear Complementarity Problems We study linear complementarity problems depending on parameters in the right-hand side and (or) in the matrix. For the case that all elements of the right-hand side are independent parameters we give a new proof for the ...
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2005-11-03BuchPDAE models of integrated circuits and perturbation analysis A model for a linear electric circuit containing semiconductors is presented. The modified nodal analysis leads to a differential algebraic equation (DAE) describing the electric network. The non-linear behaviour of the ...
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2005-11-04BuchPDAEs and Further Mixed Systems as Abstract Differential Algebraic Systems Abstract differential algebraic systems (ADASs), i.e., differential algebraic systems with operators acting in real Hilbert spaces are introduced for a systematical treatment of coupled systems of PDEs, DAEs and integral ...
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1998-11-30BuchPeriodic and Solitary Traveling Wave Solutions for the Generalized Kadomtsev-Petviashvili Equation, II As a continuation of our previous work, we improve here some results on convergence of periodic KP traveling waves to solitary ones as period goes to infinity. In addition, we present some qualitative properties of such ...
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1999-12-10BuchPicard-Einstein Metrics and Class Fields Connected with Apollonius Cycle We define Picard-Einstein metrics on complex algebraic surfaces as Kähler-Einstein metrics with negative constant sectional curvature pushed down from the unit ball via Picard modular groups allowing degenerations along ...
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1998-08-17BuchPicard-Einstein Metrics and Class Fields Connected with Apollonius Cycle We define Picard_Einstein metrics on complex algebraic surfaces as Kähler-Einstein metrics with negative constant sectional curvature pushed down from the unit ball via Picard modular groups allowing degenerations along ...
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1996-03-21BuchPolar Varieties and Efficient Real Equation Solving The Hypersurface CaseThe objective of this paper is to show how the recently proposed method by Giusti, Heintz, Morais, Morgenstern, Pardo can be applied to a case of real polynomial equation solving. Our main result concerns the problem of ...
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1997-02-28BuchPolar Varieties, Real Equation Solving and Data-Structures The Hypersurface CaseIn this paper we apply for the first time a new method for multivariate equation solving which was developed in for complex root determination to the real case. Our main result concerns the problem of finding at least one ...
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2005-11-02BuchPolyhedral Risk Measures in Stochastic Programming Stochastic programs that do not only minimize expected cost but also take into account risk are of great interest in many application fields. We consider stochastic programs with risk measures in the objective and study ...
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2011-09-27BuchPorous Media Based Modeling of parallel Plate PE-CVD Apparatus Approximation to the Experiments with SiC and TiCThe numerous technical applications in deposit metal plates with new materials like SiC and TiC has an advantage to overcome the leaking corrosive behavior and have additional a good electrical behavior. Here we present ...
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2005-11-16BuchPower Management in a Hydro-Thermal System under Uncertainty by Lagrangian Relaxation We present a dynamic multi-stage stochastic programming model for the cost-optimal generation of electric power in a hydro-thermal system under uncertainty in load, inflow to reservoirs and prices for fuel and delivery ...
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2005-11-15BuchPower Scheduling in a Hydro-Thermal System under Uncertainty A multi-stage stochastic programming model for power scheduling under uncertainty in a generation system comprising thermal and pumped-storage hydro units is developed. For its computational solution two different decomposition ...
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1992-01-01BuchPreface
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2005-11-15BuchPrimal and Dual Methods for Unit Commitment in a Hydro-Thermal Power System The unit commitment problem in a power generation system comprising thermal and pumped-storage hydro units is adressed. A large-scale mixed-integer optimization model for unit commitment in a real power system is developed ...
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2005-11-03BuchProjectors for matrix pencils In this paper, basic properties of projector sequences for matrix pairs which can be used for analyzing differential algebraic systems are collected.
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1996-12-13BuchProperties of an interior embedding for solving nonlinear optimization problems The paper presents a sufficient condition for the success of path, following algorithms with jumps when applied to one-parametric optimization problems. An interior embedding that always fulfils the mentioned sufficient ...
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2005-11-11BuchQantitative stability for scenario-based stochastic programs General quantitative stability results for stochastic programs are formulated in terms of probability metrics, specified to scenario-based stochastic programs and applied to a bond portfolio managemant problem.
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2005-11-07BuchQuadric-Line Configurations Degenerating Plane Picard Einstein Metrics I-II We define Picard-Einstein metrics on complex algebraic surfaces as Kähler-Einstein metrics with negative constant sectional curvature pushed down from the complex unit ball allowing degenerations along cycles. We ...
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2005-11-02BuchQualitative behavior of weak solutions of the drift diffusion model for semiconductor devices coupled with Maxwell’s equations The transient drift-diffusion model describing the charge transport in semiconductors is considered. Poisson's equation, which is usually used, is replaced by Maxwell's equations. The diffusion- and mobility-coefficients ...
