Quelques propriétés qualitatives de l'équation de Schrodinger non-linéaire PDF Download
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Author: Pascal Bégout
Publisher:
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Languages : fr
Pages : 0
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Author: Pascal Bégout
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
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Category : Differential equations
Languages : fr
Pages : 188
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Author: Richard Nuadi
Publisher:
ISBN:
Category :
Languages : fr
Pages : 116
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LE SYSTEME DYNAMIQUE ETUDIE EST FORME D'UNE EQUATION DE NAVIER-STOKES EN DIMENSION 2 COUPLEE A UNE INEQUATION AUX DERIVEES PARTIELLES NON LINEAIRES DE TYPE DIFFUSION SOUS CERTAINES CONDITIONS AUX LIMITES DONNEES. POUR CHAQUE PROBLEME PENALISE, ON PROUVE DES THEOREMES D'EXISTENCE, D'UNICITE ET DE REGULARITE. PAR PASSAGE A LA LIMITE LORSQUE LE PARAMETRE DE PENALISATION TEND VERS ZERO, ON MET EN EVIDENCE L'EXISTENCE DE SOLUTIONS (DITES FAIBLES) POUR LE SYSTEME INITIAL. POUR LES DONNEES INITIALES DE TYPE FAIBLE, ON DEMONTRE, POUR CHAQUE PROBLEME PENALISE ET POUR LE PROBLEME INITIAL, L'EXISTENCE D'UN ATTRACTEUR. ON TERMINE EN PROUVANT LA SEMI-CONTINUITE SUPERIEURE DE LA FAMILLE D'ATTRACTEURS ASSOCIES A L'APPROXIMATION DU PROBLEME INITIAL.
Author: Sonia Sellami-Omrani
Publisher:
ISBN:
Category :
Languages : fr
Pages : 226
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Nous nous intéressons dans cette thèse à divers problèmes d'équations aux dérivées partielles elliptiques non-linéaires dans la première partie, nous construisons un contre-exemple pour montrer un résultat de non-existence de solutions d'ondes progressives pour un modèle intervenant en combustion dans un domaine cylindrique infini en dimension trois. L'objet de la deuxième partie est l'existence de solutions d'une équation semi-linéaire dans un cylindre fini, faisant intervenir le gradient dans le terme non-linéaire. Les conditions aux bords sont mixtes de type Dirichlet et Newmann. Nous utilisons la méthode de sous- et sur-solutions. La difficulté ici est le fait que le domaine possède des coins. Dans la troisième partie, nous étudions comme dans la première partie l'existence d'ondes progressives dans un domaine cylindrique infini dans le cas où le terme source change plusieurs fois de signe. Nous établissons une condition nécessaire et suffisante pour l'existence d'une onde. Enfin la quatrième partie a pour objet l'étude de la symétrie de solutions positives d'une équation aux dérivées partielles elliptique semi-linéaire dans des domaines sectoriels avec des conditions aux bords mixtes de Dirichlet et Newmann et utilise des développements récents sur la méthode de déplacement d'hyperplans
Author: Laurent T'Joen
Publisher:
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Languages : fr
Pages : 0
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Author: M. B. Paranjape
Publisher: Springer Nature
ISBN: 3030557774
Category : Electronic books
Languages : en
Pages : 670
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Book Description
This volume of the CRM Conference Series is based on a carefully refereed selection of contributions presented at the "11th International Symposium on Quantum Theory and Symmetries", held in Montreal, Canada from July 1-5, 2019. The main objective of the meeting was to share and make accessible new research and recent results in several branches of Theoretical and Mathematical Physics, including Algebraic Methods, Condensed Matter Physics, Cosmology and Gravitation, Integrability, Non-perturbative Quantum Field Theory, Particle Physics, Quantum Computing and Quantum Information Theory, and String/ADS-CFT. There was also a special session in honour of Decio Levi. The volume is divided into sections corresponding to the sessions held during the symposium, allowing the reader to appreciate both the homogeneity and the diversity of mathematical tools that have been applied in these subject areas. Several of the plenary speakers, who are internationally recognized experts in their fields, have contributed reviews of the main topics to complement the original contributions. .
Author: Mark Mason
Publisher: John Wiley & Sons
ISBN: 1444307363
Category : Education
Languages : en
Pages : 256
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Book Description
A collection of scholarly essays, Complexity Theory and thePhilosophy of Education provides an accessible theoreticalintroduction to the topic of complexity theory while consideringits broader implications for educational change. Explains the contributions of complexity theory to philosophyof education, curriculum, and educational research Brings together new research by an international team ofcontributors Debates issues ranging from the culture of curriculum, to theimplications of work of key philosophers such as Foucault and JohnDewey for educational change Demonstrates how social scientists and social and educationpolicy makers are drawing on complexity theory to answer questionssuch as: why is it that education decision-makers are so resistantto change; how does change in education happen; and what does ittake to make these changes sustainable? Considers changes in use of complexity theory; developedprincipally in the fields of physics, biology, chemistry, andeconomics, and now being applied more broadly to the socialsciences and to the study of education
Author: Alain Hébert
Publisher: Presses inter Polytechnique
ISBN: 2553014368
Category : Nuclear physics
Languages : en
Pages : 426
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Author: Olivier Ouari
Publisher: Royal Society of Chemistry
ISBN: 1788019660
Category : Science
Languages : en
Pages : 611
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Book Description
Nitroxides are versatile small organic molecules possessing a stabilised free radical. With their unpaired electron spin they display a unique reactivity towards various environmental factors, enabling a diverse range of applications. They have uses as synthetic tools, such as catalysts or building blocks; imaging agents and probes in biomedicine and materials science; for medicinal antioxidant applications; and in energy storage. Polynitroxides (polymers bearing pendant nitroxide sidechains) have been used in organic radical batteries, oxidation catalysts and in exchange reactions for constructing complex architectures. Chapters in this book cover the synthesis of nitroxides, EPR studies and magnetic resonance applications, physiochemical studies, and applications including in batteries, imaging and organic synthesis. With contributions from leaders in the field, Nitroxides will be of interest to graduate students and researchers across chemistry, physics, biology and materials science.
Author: Markus Kunze
Publisher: Springer
ISBN: 9783662206102
Category :
Languages : en
Pages : 244
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Book Description
The book provides a self-contained introduction to the mathematical theory of non-smooth dynamical problems, as they frequently arise from mechanical systems with friction and/or impacts. It is aimed at applied mathematicians, engineers, and applied scientists in general who wish to learn the subject.
