Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"linear functional"”.
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A posteriori bounds for linear functional outputs of hyperbolic partial differential equations
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1997.
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Computing upper and lower bounds on linear functional outputs from linear coercive partial differential equations
… upper and lower bounds on the values of linear functional outputs of the exact weak solutions to linear coercive partial differential equations with piecewise polynomial forcing posed on polygonal domains. The method results from exploiting the Lagrangian saddle point property engendered …
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A posteriori finite element bounds for linear-functional outputs of coercive partial differential equations and of the Stokes problem
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
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A class of functional differential equations of mixed type
This thesis is concerned with a class of linear functional differential equations of mixed type.
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Near-Atomic Spaces
… namely, does every infinite dimensional metric linear space have an infinite dimensional subspace with a nonzero continuous linear functional?
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Solvability of differential systems near singular points
<p>"Functional analysis techniques are used to prove a theorem, analogous to the Harris-Sibuya-Weinberg theorem for ordinary differential equations, which yields as corollaries a number of existence theorems for holomorphic solutions of linear functional differential systems of the form …
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Polynomial Optimization and the Moment Problem
… to solve the moment problem for a tau-continuous linear functional on R[X1,...,Xn]. We investigate the moment problem for weighted lp-continuous psd functionals and coefficientwise convergence topology on R[X1,...,Xn]. Then, we fix a set K, and find an appropriate locally convex topology tau, such …
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Semilinear elliptic partial differential equations with the critical Sobolev exponent
… present how variational methods and results from linear and non-linear functional analysis are applied to solving certain types of semilinear elliptic partial differential equations (PDEs). The ultimate goal is to prove results on the existence and non-existence of solutions to the Semilinear …
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Reduced-basis methods applied to locally non-affine and locally non-linear partial differential equations
… and associated outputs of interest expressed as functionals of these solutions. Areas that require solving partial differential equations include - but are not restricted to heat transfer, elasticity, and fluid dynamics. Since in most cases it is not feasible to obtain an analytic solution, many …
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A finite element method for three-dimensional analysis of metal forming
… to analyze extrusion processes. A brick type linear element and the Upper Bound theorem were used to analyze the extrusion of a cylindrical billet into a square cross-section prism. A minimization technique for a non-linear functional with linear constraints was developed. Different types of …
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A Market-Based Approach for Valuing Ecosystem Services on Coastal Properties
… theory and results from a Box-Cox model, the log-linear functional form was the best fit for the data. Marginal implicit prices of services from wetland ecosystems were estimated using proximity variables. Most wetland proximity variables were statistically significant and indicative of …
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Functional polymers for biomedical application : synthesis and applications
… derivatives. It was anticipated the resulting functional polyamides would biodegrade to physiologically acceptable compounds and show pH dependant solubility could be used for biomedical applications ranging from enteric coatings to hydrosoluble drug delivery vehicles capable of targeting areas …
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Reduced-basis methods applied to problems in elasticity : analysis and applications
… We present a technique for the prediction of linear-functional outputs of elliptic partial differential equations with affine parameter dependence. The essential components are: (i) rapidly convergent global reduced-basis approximations - projection onto a space WN spanned by solutions of the …
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On some Two-Dimensional Singular Stochastic Control Problems and their Free-Boundary Analysis
… principle is used to derive a system of non-linear equations characterizing the constant free-boundaries. This system is solved numerically to provide a comparative static analysis. Finally, in Section 4, we derive the structure of the value function by employing the connection of the …
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Three essays on the sustainable macroeconomic policies
… the sustainability of fiscal policy in terms of linearity vs. non-linearity of fiscal reaction function, and especially the semi-parametric approaches are employed. Moreover, the threshold of fiscal policy regime switches and the interaction between monetary and fiscal policies are also …
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The Design of GLR Control Charts for Process Monitoring
… when a special cause may produce a time varying linear drift in the mean. The design and application of a GLR control chart for drift detection is investigated. The GLR drift chart does not require specification of any tuning parameters by the practitioner, and has the advantage that, at the time …
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Essays on testing spatial models
… spatial dynamic panel data (SDPD) model and a nonlinear SAR (NSAR) model. The proposed test is aiming to solve model selection problems. Chapter 1,""Robust LM tests for spatial dynamic panel data models"", introduces robustLM tests for the SDPD model that includes a contemporaneous spatial lag, a …
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Time-delay systems : stability, sliding mode control and state estimation
… (L-K) method, in conjunction with the Linear Matrix Inequality (LMI) techniques is mainly used for analysis and design. Firstly, a brief survey on recent developments of the L-K method for stability analysis, discrete-time sliding mode control design and linear functional observer …
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DEVELOPMENT OF WATER RESOURCES IN BAHRAIN: A COMBINED APPROACH OF SUPPLY-DEMAND ANALYSIS
… surveys, separate water demand functions of both linear and log-linear functional forms are estimated for the major water use activities. The empirical evidence presented in this research suggests that certain socio-economic, demographic, physical, climatic, and technological factors affect water …
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On the theory of Boolean vector spaces
… of Boolean vector spaces and their associated linear homomorphism (transformation) spaces which at present remain unanswered. The purpose of this dissertation will be to continue the development of the theory of Boolean vector spaces while attempting to provide answers to some of these …
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