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1. |
Record Nr. |
UNINA9910154748403321 |
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Autore |
Griffiths Phillip A. |
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Titolo |
Differential Systems and Isometric Embeddings.(AM-114), Volume 114 / / Gary R. Jensen, Phillip A. Griffiths |
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Pubbl/distr/stampa |
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Princeton, NJ : , : Princeton University Press, , [2016] |
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©1987 |
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ISBN |
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Descrizione fisica |
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1 online resource (241 pages) : portrait |
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Collana |
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Annals of Mathematics Studies ; ; 336 |
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Disciplina |
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Soggetti |
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Exterior differential systems |
Differential equations, Partial |
Embeddings (Mathematics) |
Riemannian manifolds |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Frontmatter -- Contents -- Preface -- Commonly used notation -- 1. Introduction -- 2. Structure equations of Xn ⊂ EN -- 3. Pfaffian differential systems -- 4. Quasi-linear Pfaffian differential system -- 5. The isometric embedding system -- 6. The characteristic variety -- 7. Isometric embeddings of space forms -- 8. Embedding Cauchy-Riemann structures -- References -- Index |
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Sommario/riassunto |
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The theory of exterior differential systems provides a framework for systematically addressing the typically non-linear, and frequently overdetermined, partial differential equations that arise in differential geometry. Adaptation of the techniques of microlocalization to differential systems have led to recent activity on the foundations of the theory; in particular, the fundamental role of the characteristic variety in geometric problems is now clearly established. In this book the general theory is explained in a relatively quick and concrete manner, and then this general theory is applied to the recent developments in the classical problem of isometric embeddings of Riemannian manifolds. |
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2. |
Record Nr. |
UNINA9910346904403321 |
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Autore |
Utz Annika |
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Titolo |
The Electrochemical Oxidation of H2 and CO at Patterned Ni Anodes of SOFCs |
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Pubbl/distr/stampa |
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KIT Scientific Publishing, 2011 |
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ISBN |
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Descrizione fisica |
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1 online resource (XI, 144 p. p.) |
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Collana |
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Schriften des Instituts für Werkstoffe der Elektrotechnik, Karlsruher Institut für Technologie / Institut für Werkstoffe der Elektrotechnik |
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Soggetti |
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Technology: general issues |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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In this work, a deeper understanding of the electrochemical oxidation at SOFC anodes was gained by the experimental characterization of patterned Ni anodes in H2-H2O and CO-CO2 atmosphere. By high resolution data analysis, the Line Specific Resistance attributed to charge transfer and its dependencies on gas composition, temperature and polarization voltage were identified. Furthermore, the comparison of the performance of patterned and cermet anodes was enabled using a transmission line model. |
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