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1. |
Record Nr. |
UNISA996466586803316 |
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Autore |
Tiba Dan <1953-> |
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Titolo |
Optimal control of nonsmooth distributed parameter systems / / Dan Tiba |
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Pubbl/distr/stampa |
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Berlin : , : Springer, , [1990] |
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©1990 |
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ISBN |
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Edizione |
[1st ed. 1990.] |
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Descrizione fisica |
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1 online resource (VIII, 160 p.) |
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Collana |
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Lecture Notes in Mathematics, , 0075-8434 ; ; 1459 |
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Disciplina |
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Soggetti |
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Control theory - Data processing |
Mathematical optimization - Computer programs |
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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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Note generali |
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Bibliographic Level Mode of Issuance: Monograph |
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Nota di contenuto |
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Elements of nonlinear analysis -- Semilinear equations -- Variational inequalities -- Free boundary problems. |
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Sommario/riassunto |
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The book is devoted to the study of distributed control problems governed by various nonsmooth state systems. The main questions investigated include: existence of optimal pairs, first order optimality conditions, state-constrained systems, approximation and discretization, bang-bang and regularity properties for optimal control. In order to give the reader a better overview of the domain, several sections deal with topics that do not enter directly into the announced subject: boundary control, delay differential equations. In a subject still actively developing, the methods can be more important than the results and these include: adapted penalization techniques, the singular control systems approach, the variational inequality method, the Ekeland variational principle. Some prerequisites relating to convex analysis, nonlinear operators and partial differential equations are collected in the first chapter or are supplied appropriately in the text. The monograph is intended for graduate students and for researchers interested in this area of mathematics. |
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2. |
Record Nr. |
UNINA9910778566603321 |
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Autore |
Meltzer David J. |
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Titolo |
First Peoples in a New World : Colonizing Ice Age America / / David J. Meltzer |
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Pubbl/distr/stampa |
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Berkeley, CA : , : University of California Press, , [2009] |
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©2009 |
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ISBN |
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1-282-36087-6 |
9786612360879 |
0-520-94315-5 |
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Descrizione fisica |
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1 online resource (481 p.) |
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Disciplina |
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Soggetti |
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Glacial epoch - North America |
Glacial epoch --North America |
North America - Antiquities |
North America --Antiquities |
Paleo-Indians - North America |
Paleo-Indians --North America |
Ethnic & Race Studies |
Gender & Ethnic Studies |
Social Sciences |
North America Antiquities |
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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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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references (p. [385]-420) and index. |
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Nota di contenuto |
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Frontmatter -- CONTENTS -- PREFACE -- ACKNOWLEDGMENTS -- 1. OVERTURE -- 2. THE LANDSCAPE OF COLONIZATION -- 3. FROM PALEOLITHS TO PALEOINDIANS -- 4. THE PRE-CLOVIS CONTROVERSY AND ITS RESOLUTION -- 5. NON-ARCHAEOLOGICAL ANSWERS TO ARCHAEOLOGICAL QUESTIONS -- 6. American Origins: The Search for Consensus -- 7. What Do You Do When No One's Been There Before? -- 8. CLOVIS ADAPTATIONS AND PLEISTOCENE EXTINCTIONS -- 9. Settling In: Late Paleoindians and the Waning Ice Age -- 10. WHEN PAST AND PRESENT COLLIDE -- FURTHER READING -- NOTES -- REFERENCES -- INDEX |
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Sommario/riassunto |
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More than 12,000 years ago, in one of the greatest triumphs of prehistory, humans colonized North America, a continent that was then truly a new world. Just when and how they did so has been one of the most perplexing and controversial questions in archaeology. This dazzling, cutting-edge synthesis, written for a wide audience by an archaeologist who has long been at the center of these debates, tells the scientific story of the first Americans: where they came from, when they arrived, and how they met the challenges of moving across the vast, unknown landscapes of Ice Age North America. David J. Meltzer pulls together the latest ideas from archaeology, geology, linguistics, skeletal biology, genetics, and other fields to trace the breakthroughs that have revolutionized our understanding in recent years. Among many other topics, he explores disputes over the hemisphere's oldest and most controversial sites and considers how the first Americans coped with changing global climates. He also confronts some radical claims: that the Americas were colonized from Europe or that a crashing comet obliterated the Pleistocene megafauna. Full of entertaining descriptions of on-site encounters, personalities, and controversies, this is a compelling behind-the-scenes account of how science is illuminating our past. |
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