1.

Record Nr.

UNINA9910454364803321

Titolo

Numerical methods for viscosity solutions and applications [[electronic resource] /] / editors, Maurizio Falcone, Charalampos Makridakis

Pubbl/distr/stampa

Singapore, : World Scientific, c2001

ISBN

1-281-95136-6

9786611951368

981-279-980-X

Descrizione fisica

1 online resource (249 p.)

Collana

Series on advances in mathematics for applied sciences ; ; 59

Altri autori (Persone)

FalconeMaurizio

MakridakisCharalampos

Disciplina

515

Soggetti

Viscosity solutions

Calculus of variations

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

Foreword; CONTENTS; Geometrical Optics and Viscosity Solutions; 1 High frequency waves and WKB method; 2 The Kravtsov-Ludwig method; 3 Multivalued solutions to the eikonal equation and shadow zones; References; Computation of Vorticity Evolution for a Cylindrical Type-II Superconductor Subject to Parallel and Transverse Applied Magnetic Fields; 1 Introduction; 2 The Models; 3 Discretization of the Models; 4 Numerical Computations; References; A Characterization of the Value Function for a Class of Degenerate Control Problems; 1 Introduction; 2 Assumptions and definitions

3 A characterization of the value function4 Approximation of the value function; References; Some Microstructures in Three Dimensions; 1 Introduction; 2 A three dimensional example; 3 Minimizing sequences; 4 Numerical experiments; References; Convergence of Numerical Schemes for the Approximation of Level Set Solutions to Mean Curvature Flow; 1 Introduction; 2 Background; 3 The Crandall-Lions scheme; 4 Finite element method; References; Optimal Discretization Steps in Semi-Lagrangian Approximation of First-Order PDEs; 1 Introduction; 2 Construction of the schemes and basic convergence



theory

3 Fully discrete second and third order schemes4 Relationship between time and space step; 5 Numerical tests; Conclusions; References; Convergence Past Singularities to the Forced Mean Curvature Flow for a Modified Reaction-Diffusion Approach; 1 Introduction; 2 Approximate Traveling Wave; 3 Viscosity Solutions; 4 Supersolutions; 5 Comparison Lemma; 6 Convergence and interfaces error estimates; References; The Viscosity-Duality Solutions Approach to Geometric Optics for the Helmholtz Equation; 1 Weak solutions to the differential problem; 2 A class of numerical approximations

3 Numerical results4 Conclusion; References; Adaptive Grid Generation for Evolutive Hamilton-Jacobi-Bellman Equations; 1 Introduction; 2 Discretization in time and space; 3 Error estimation; 4 Implementation details; 5 Numerical examples; References; Solution and Application of Anisotropic Curvature Driven Evolution of Curves (and Surfaces); 1 Introduction; 2 Direct approach using porous-medium like equations; 3 Direct approach by intrinsic heat equations; 4 Solution using level set equation; 5 Phase field approximation of interface motion; References

An Adaptive Scheme on Unstructured Grids for the Shape-From-Shading Problem1 Introduction; 2 A fixed grid fully discrete scheme; 3 A local error indicator; 4 The adaptive grid algorithm; 5 Implementation of the algorithm; 6 Numerical experiments; References; On A Posteriori Error Estimation For Constant Obstacle Problems; 1 Introduction; 2 Results and their discussion; 3 Proofs; References

Sommario/riassunto

The volume contains twelve papers dealing with the approximation of first and second order problems which arise in many fields of application including optimal control, image processing, geometrical optics and front propagation. Some contributions deal with new algorithms and technical issues related to their implementation. Other contributions are more theoretical, dealing with the convergence of approximation schemes. Many test problems have been examined to evaluate the performances of the algorithms. The volume can attract readers involved in the numerical approximation of differential mod



2.

Record Nr.

UNINA9910814074003321

Autore

Altstadt Audrey L. <1953->

Titolo

Frustrated democracy in post-Soviet Azerbaijan / / Audrey L. Altstadt

Pubbl/distr/stampa

Washington, District of Columbia ; ; New York : , : Woodrow Wilson Center Press : , : Columbia University Press, , 2017

©2017

Descrizione fisica

1 online resource (346 pages) : illustrations, maps, tables

Disciplina

947.54086

Soggetti

Islam and politics - Azerbaijan - History

Geopolitics - Azerbaijan - History

Petroleum industry and trade - Political aspects - Azerbaijan - History

Post-communism - Azerbaijan - History

Democracy - Azerbaijan - History

Political corruption - Azerbaijan - History

Authoritarianism - Azerbaijan - History

Azerbaijan Politics and government 1991-

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Frontmatter -- Contents -- List of Maps and Tables -- Preface -- Acknowledgments -- Notes on Languages and Spelling -- Acronyms and Abbreviations -- Introduction -- 1. A Starting Point: History and Geopolitics and What They Tell Us -- 2. The Open Wound: Mountainous Karabagh and National Consciousness -- 3. Azerbaijan's Best and Brightest: The Rise, Decline, and Renewal of the Democratic Opposition -- 4. Oil Lifts All Boats? Social and Economic Repercussions and the Rise of Corruption -- 5. Jail for the "Donkey Bloggers": Crushing Youth Activism, Human Rights, and a Free Media -- 6. Allah-u Akbar: Islam in Azerbaijan- Piety, Politics, and the Future -- 7. What's Next? The Choices Ahead -- Notes -- Selected Bibliography of Major Sources -- Index

Sommario/riassunto

Frustrated Democracy in Post-Soviet Azerbaijan follows a newly independent oil-rich former Soviet republic as it adopts a Western



model of democratic government and then turns toward corrupt authoritarianism. Audrey L. Altstadt begins with the Nagorno-Karabagh War (1988-1994) which triggered Azerbaijani nationalism and set the stage for the development of a democratic movement. Initially successful, this government soon succumbed to a coup. Western oil companies arrived and money flowed in-a quantity Altstadt calls "almost unimaginable"-causing the regime to resort to repression to maintain its power. Despite Azerbaijan's long tradition of secularism, political Islam emerged as an attractive alternative for those frustrated with the stifled democratic opposition and the lack of critique of the West's continued political interference. Altstadt's work draws on instances of censorship in the Azerbaijani press, research by embedded experts and nongovernmental and international organizations, and interviews with diplomats and businesspeople. The book is an essential companion to her earlier works, The Azerbaijani Turks: Power and Identity Under Russian Rule and The Politics of Culture in Soviet Azerbaijan, 1920-1940.