| |
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
Soggetti |
|
Viscosity solutions |
Calculus of variations |
Electronic books. |
|
|
|
|
|
|
|
|
Lingua di pubblicazione |
|
|
|
|
|
|
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. |
UNINA990004575150403321 |
|
|
Titolo |
Novum Testamentum graece / textum recensuit, apparatum criticum ex editionibus et codicibus manuscriptis collectum addidit Henr. Jos. Vogels |
|
|
|
|
|
|
|
Pubbl/distr/stampa |
|
|
Dusseldorf, : L. Schwann, 1922 |
|
|
|
|
|
|
|
Titolo uniforme |
Bibbia. , Nuovo Testamento <in greco> |
|
|
|
|
|
Edizione |
[Editio altera] |
|
|
|
|
|
Descrizione fisica |
|
|
|
|
|
|
Locazione |
|
|
|
|
|
|
Collocazione |
|
|
|
|
|
|
Lingua di pubblicazione |
|
|
|
|
|
|
Formato |
Materiale a stampa |
|
|
|
|
|
Livello bibliografico |
Monografia |
|
|
|
|
|
3. |
Record Nr. |
UNINA9910795456703321 |
|
|
Autore |
Fekadu Bekele |
|
|
Titolo |
African predicaments & the method of solving them effectively : an alternative approach to the neo-liberal economic policy / / Fekadu Bekele (PhD) |
|
|
|
|
|
|
|
Pubbl/distr/stampa |
|
|
Berlin : , : Logos Verlag Berlin GmbH, , [2016] |
|
|
|
|
|
|
|
ISBN |
|
|
|
|
|
|
Descrizione fisica |
|
1 online resource (175 pages) : illustrations |
|
|
|
|
|
|
Disciplina |
|
|
|
|
|
|
Soggetti |
|
Liberalism |
Africa Economic conditions 1960- |
Africa Economic policy |
Africa Commerce |
|
|
|
|
|
|
|
|
Lingua di pubblicazione |
|
|
|
|
|
|
Formato |
Materiale a stampa |
|
|
|
|
|
Livello bibliografico |
Monografia |
|
|
|
|
|
Note generali |
|
|
|
|
|
|
Nota di bibliografia |
|
Includes bibliographical references (pages 159-172) and index. |
|
|
|
|
|
|
|
|
|
|
|
Sommario/riassunto |
|
Long description: The author of this book identifies the causes of African predicaments and gives solutions to the complicated challenges the continent faces. He shows how slavery and colonialism devastated the evolutionary development of the continent. Both slavery and colonialism had destroyed until hitherto existed forms of social organizations and division of labor. After political independence many African governments were pursued to implement free market economic policies. However, the different policies that have been applied for the past six decades could not wipe out the structural crises of the continent. Instead the different policies have deepened the social and the economic crises of the continent. After 50 years of political independence, many African countries are still exporters of raw materials and cash crops. Almost all African countries do not have an integrated market structure that is based on vast division of labor. The market sizes of many African countries are very narrow. To this day many African countries practice the so-called import substitution industrialization which cannot solve the continent's complex problems. After the author has examined the failure of the economic policies of the past six decades and their negative impacts he proposes that African countries must introduce a holistic program that effectively solves all the challenges that the continent faces. For that they must introduce political and institutional reforms. The author believes that without wide range political and institutional reforms and without changing the mindset of the political and economic elite there cannot be any social and economic progress. |
|
|
|
|
|
|
|
| |