Contributions à l'analyse variationnelle et à l'optimisation vectorielle

Contributions à l'analyse variationnelle et à l'optimisation vectorielle PDF Author: Christophe Durousseau
Publisher:
ISBN:
Category :
Languages : fr
Pages : 67

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Book Description
Cette thèse est composée de cinq chapitres, tous liés à lanalyse convexe. Nous étudions pour commencer la convergence "slice" d'une suite de fonctions à l'aide de la convergence de leurs sous-différentiels...Nous terminons en établissant des résultats liés au sous-différentiel régulier d'une fonction vectorielle et nous présentons des propriétés du sous-différentiel vectoriel d'une application multivoque par laméthode de scalarisation.

Contributions à l'analyse variationnelle et à l'optimisation vectorielle

Contributions à l'analyse variationnelle et à l'optimisation vectorielle PDF Author: Christophe Durousseau
Publisher:
ISBN:
Category :
Languages : fr
Pages : 67

Get Book Here

Book Description
Cette thèse est composée de cinq chapitres, tous liés à lanalyse convexe. Nous étudions pour commencer la convergence "slice" d'une suite de fonctions à l'aide de la convergence de leurs sous-différentiels...Nous terminons en établissant des résultats liés au sous-différentiel régulier d'une fonction vectorielle et nous présentons des propriétés du sous-différentiel vectoriel d'une application multivoque par laméthode de scalarisation.

Analyse non linéaire

Analyse non linéaire PDF Author: Jean Jacques Moreau
Publisher: Bordas Editions
ISBN:
Category : Functional analysis
Languages : en
Pages : 496

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Book Description


Nonsmooth Analysis

Nonsmooth Analysis PDF Author: Winfried Schirotzek
Publisher: Springer Science & Business Media
ISBN: 3540713336
Category : Mathematics
Languages : en
Pages : 380

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Book Description
This book treats various concepts of generalized derivatives and subdifferentials in normed spaces, their geometric counterparts and their application to optimization problems. It starts with the subdifferential of convex analysis, passes to corresponding concepts for locally Lipschitz continuous functions and then presents subdifferentials for general lower semicontinuous functions. All basic tools are presented where they are needed: this concerns separation theorems, variational and extremal principles as well as relevant parts of multifunction theory. Each chapter ends with bibliographic notes and exercises.

Acceleration Methods

Acceleration Methods PDF Author: Alexandre d'Aspremont
Publisher:
ISBN: 9781680839289
Category : Technology & Engineering
Languages : en
Pages : 262

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Book Description
This monograph covers recent advances in a range of acceleration techniques frequently used in convex optimization. Using quadratic optimization problems, the authors introduce two key families of methods, namely momentum and nested optimization schemes. These methods are covered in detail and include Chebyshev Acceleration, Nonlinear Acceleration, Nesterov Acceleration, Proximal Acceleration and Catalysts and Restart Schemes.This book provides the reader with an in-depth description of the developments in Acceleration Methods since the early 2000s, whilst referring the reader back to underpinning earlier work for further understanding. This topic is important in the modern-day application of convex optimization techniques in many applicable areas.This book is an introduction to the topic that enables the reader to quickly understand the important principles and apply the techniques to their own research.

Implicit Partial Differential Equations

Implicit Partial Differential Equations PDF Author: Bernard Dacorogna
Publisher: Springer Science & Business Media
ISBN: 9780817641214
Category : Mathematics
Languages : en
Pages : 292

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Book Description
Nonlinear partial differential equations has become one of the main tools of mod ern mathematical analysis; in spite of seemingly contradictory terminology, the subject of nonlinear differential equations finds its origins in the theory of linear differential equations, and a large part of functional analysis derived its inspiration from the study of linear pdes. In recent years, several mathematicians have investigated nonlinear equations, particularly those of the second order, both linear and nonlinear and either in divergence or nondivergence form. Quasilinear and fully nonlinear differential equations are relevant classes of such equations and have been widely examined in the mathematical literature. In this work we present a new family of differential equations called "implicit partial differential equations", described in detail in the introduction (c.f. Chapter 1). It is a class of nonlinear equations that does not include the family of fully nonlinear elliptic pdes. We present a new functional analytic method based on the Baire category theorem for handling the existence of almost everywhere solutions of these implicit equations. The results have been obtained for the most part in recent years and have important applications to the calculus of variations, nonlin ear elasticity, problems of phase transitions and optimal design; some results have not been published elsewhere.

Numerical Methods for Nonlinear Variational Problems

Numerical Methods for Nonlinear Variational Problems PDF Author: Roland Glowinski
Publisher: Springer Science & Business Media
ISBN: 3662126133
Category : Science
Languages : en
Pages : 506

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Book Description
This book describes the mathematical background and reviews the techniques for solving problems, including those that require large computations such as transonic flows for compressible fluids and the Navier-Stokes equations for incompressible viscous fluids. Finite element approximations and non-linear relaxation, and nonlinear least square methods are all covered in detail, as are many applications. This volume is a classic in a long-awaited softcover re-edition.

African Doctorates in Mathematics

African Doctorates in Mathematics PDF Author:
Publisher: Lulu.com
ISBN: 1430318678
Category : Reference
Languages : en
Pages : 385

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Book Description
This volume presents a catalogue of over 2000 doctoral theses by Africans in all fields of mathematics, including applied mathematics, mathematics education and history of mathematics. The introduction contains information about distribution by country, institutions, period, and by gender, about mathematical density, and mobility of mathematicians. Several appendices are included (female doctorate holders, doctorates in mathematics education, doctorates awarded by African universities to non-Africans, doctoral theses by non-Africans about mathematics in Africa, activities of African mathematicians at the service of their communities). Paulus Gerdes compiled the information in his capacity of Chairman of the African Mathematical Union Commission for the History of Mathematics in Africa (AMUCHMA). The book contains a preface by Mohamed Hassan, President of the African Academy of Sciences (AAS) and Executive Director of the Academy of Sciences for the Developing World (TWAS). (383 pp.)

Essays and Surveys in Global Optimization

Essays and Surveys in Global Optimization PDF Author: Charles Audet
Publisher: Springer Science & Business Media
ISBN: 0387255702
Category : Business & Economics
Languages : en
Pages : 294

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Book Description
Global optimization aims at solving the most general problems of deterministic mathematical programming: to find the global optimum of a nonlinear, nonconvex, multivariate function of continuous and/or integer variables subject to constraints which may be themselves nonlinear and nonconvex. In addition, once the solutions are found, proof of its optimality is also expected from this methodology. Therefore, with these difficulties in mind, global optimization is becoming an increasingly powerful and important methodology. Essays and Surveys in Global Optimization is the most recent examination of its mathematical capability, power, and wide ranging solutions to many fields in the applied sciences.

Second Order Analysis on $(\mathscr {P}_2(M),W_2)$

Second Order Analysis on $(\mathscr {P}_2(M),W_2)$ PDF Author: Nicola Gigli
Publisher: American Mathematical Soc.
ISBN: 0821853090
Category : Mathematics
Languages : en
Pages : 173

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Book Description
The author develops a rigorous second order analysis on the space of probability measures on a Riemannian manifold endowed with the quadratic optimal transport distance $W_2$. The discussion includes: definition of covariant derivative, discussion of the problem of existence of parallel transport, calculus of the Riemannian curvature tensor, differentiability of the exponential map and existence of Jacobi fields. This approach does not require any smoothness assumption on the measures considered.

Optimization, Optimal Control and Partial Differential Equations

Optimization, Optimal Control and Partial Differential Equations PDF Author: Viorel Barbu
Publisher: Springer Science & Business Media
ISBN: 9783764327880
Category : Mathematics
Languages : en
Pages : 376

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Book Description
Variational methods in mechanics and physical models.- Fluid flows in dielectric porous media.- The impact of a jet with two fluids on a porous wall.- Critical point methods in nonlinear eigenvalue problems with discontinuities.- Maximum principles for elliptic systems.- Exponential dichotomy of evolution operators in Banach spaces.- Asymptotic properties of solutions to evolution equations.- On some nonlinear elastic waves biperiodical or almost periodical in mechanics and extensions hyperbolic nonlinear partial differential equations.- The controllability of infinite dimensional and distributed parameter systems.- Singularities in boundary value problems and exact controllability of hyperbolic systems.- Exact controllability of a shallow shell model.- Inverse problem: Identification of a melting front in the 2D case.- Micro-local approach to the control for the plates equation.- Bounded solutions for controlled hyperbolic systems.- Controllability and turbulence.- The H? control problem.- The H? boundary control with state feedback; the hyperbolic case.- Remarks on the theory of robust control.- The dynamic programming method.- Optimality and characteristics of Hamilton-Jacobi-Bellman equations.- Verification theorems of dynamic programming type in optimal control.- Isaacs' equations for value-functions of differential games.- Optimal control for robot manipulators.- Control theory and environmental problems: Slow fast models for management of renewable ressources.- On the Riccati equations of stochastic control.- Optimal control of nonlinear partial differential equations.- A boundary Pontryagin's principle for the optimal control of state-constrained elliptic systems.- Controllability properties for elliptic systems, the fictitious domain method and optimal shape design problems.- Optimal control for elliptic equation and applications.- Inverse problems for variational inequalities.- The variation of the drag with respect to the domain in Navier-Stokes flow, .- Mathematical programming and nonsmooth optimization.- Scalar minimax properties in vectorial optimization.- Least-norm regularization for weak two-level optimization problems.- Continuity of the value function with respect to the set of constraints.- On integral inequalities involving logconcave functions.- Numerical solution of free boundary problems in solids mechanics.- Authors' index