Search results for "Linear system"

showing 10 items of 1558 documents

GEOMETRIC FUNCTION THEORY AND NON-LINEAR ANALYSIS (Oxford Mathematical Monographs)

2002

Nonlinear systemGeometric function theoryGeneral MathematicsApplied mathematicsMathematicsBulletin of the London Mathematical Society
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Geodynamic inversion to constrain the non-linear rheology of the lithosphere

2015

A common method to determine the strength of the lithosphere is through estimating its effective elastic thickness from the coherence between gravity and topography. This method assumes a priori that the lithosphere is a thin elastic plate floating on a viscous mantle. Whereas this seems to work well with oceanic plates, it has given controversial results in continental collision zones. Usually, continental collisions zones are well-studied areas for which additional geophysical datasets such as receiver functions and seismic tomography exist that constrain the geometry of the lithosphere and often show that it is rather complex. Yet, lithospheric geometry by itself is insufficient to under…

Nonlinear systemGeophysicsRheologyContinental collisionGeochemistry and PetrologyOceanic crustLithosphereSeismic tomographyGeophysicsGeologyMantle (geology)Physics::GeophysicsCoherence (physics)Geophysical Journal International
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Gain-scheduled H-infinity observer design for nonlinear stochastic systems with time-delay and actuator saturation

2012

In this paper, we propose a method for designing continuous gain-scheduled robust H ∞ observer on a class of extended stochastic nonlinear systems subject to time delay and actuator saturation. Initially, gradient linearization procedure is applied to describe such extended nonlinear systems into several model-based linear systems. Next, a robust linear H ∞ observer is designed to such linear stochastic models. Subsequently, a convex hull set is investigated and sufficient condition is derived in terms of feedback observer to determine whether a given initial condition belongs to an ellipsoid invariant set. Finally, continuous gain-scheduled approach is employed to design continuous nonline…

Nonlinear systemH-infinity methods in control theoryObserver (quantum physics)Stochastic modellingLinearizationControl theoryLinear systemInitial value problemRobust controlMathematics2012 American Control Conference (ACC)
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Some improvements of classical iterative methods for the solution of nonlinear equations

1981

Nonlinear systemIterative methodApplied mathematicsRelaxation (iterative method)MathematicsLocal convergence
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Softness Kernel and Nonlinear Electronic Responses

2021

Nonlinear systemKernel (statistics)Applied mathematicsLinear response theoryMathematicsChemical Reactivity in Confined Systems
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FIBER AND GUIDED WAVE OPTICS | Nonlinear Effects (Basics)

2005

Nonlinear systemMaterials scienceOpticsbusiness.industryFiberbusinessGuided wave optics
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finite element methods

2017

Two robot patch recovery methods with built-in field equations and boundary conditions superconvergence similarities in standard and mixed finite element methods on the FEM for the Navier-Stokes equations in the domains with corner singularities projections in finite element analysis and application element analysis method and superconvergence quadratic interpolation polynomials in vertices of strongly regular triangulations explicit error bounds for a nonconforming finite element method analysis of the average efficiency of an error estimator on the mesh for difference schemes of higher accuracy for the heat-conduction equation shape design sensitivity formulae approximated by means of a r…

Nonlinear systemMathematical analysisExtrapolationBoundary value problemMixed finite element methodSuperconvergenceGalerkin methodComputer Science::Numerical AnalysisFinite element methodMathematics::Numerical AnalysisMathematicsExtended finite element method
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Non linear relaxation in the presence of an absorbing barrier

1993

Nonlinear systemMathematical analysisRelaxation (physics)Molecular physicsMathematics
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Interactive Nonlinear Multiobjective Procedures

2006

An overview of the interactive methods for solving nonlinear multiple criteria decision making problems is given. In interactive methods, the decision maker progressively provides preference information so that the most satisfactory compromise can be found. The basic features of several methods are introduced and some theoretical results are provided. In addition, references to modifications and applications as well as to other methods are indicated.

Nonlinear systemMathematical optimizationComputer scienceCompromisemedia_common.quotation_subjectMultiple criteriaDecision makerMulti-objective optimizationPreferenceNonlinear programmingmedia_common
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Some Methods for Nonlinear Multi-objective Optimization

2001

A general overview of nonlinear multiobjective optimization methods is given. The basic features of several methods are introduced so that an appropriate method could be found for different purposes. The methods are classified according to the role of a decision maker in the solution process. The main emphasis is devoted to interactive methods where the decision maker progressively provides preference information so that the most satisfactory solution can be found.

Nonlinear systemMathematical optimizationComputer scienceMulti-objective optimizationPreferenceNonlinear programming
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