David wraith (30 résultats)

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Etat : Neu. 1st ed. 2015. 136 S. Buch ist neu, aus priv. Vorbesitz, ungelesen. -----Inhalt. This book studies certain spaces of Riemannian metrics on both compact and non-compact manifolds. These spaces are defined by various sign-based curvature conditions, with special attention paid to positive scalar curvature and non-negative sectional curvature, though we also consider positive Ricci and non-positive sectional curvature. If we form the quotient of such a space of metrics under the action of the diffeomorphism group (or possibly a subgroup) we obtain a moduli space. Understanding the topology of both the original space of metrics and the corresponding moduli space form the central theme of this book. For example, what can be said about the connectedness or the various homotopy groups of such spaces? We explore the major results in the area, but provide sufficient background so that a non-expert with a grounding in Riemannian geometry can access this growing area of research. Wilderich Tuschmann's general research interests lie in the realms of global differential geometry, Riemannian geometry, geometric topology, and their applications, including, for example, questions concerning the geometry and topology of nonnegative and almost nonnegative curvature, singular metric spaces, collapsing and Gromov-Hausdorff convergence, analysis and geometry on Alexandrov spaces, geometric finiteness theorems, moduli spaces of Riemannian metrics, transformation groups, geometric bordism invariants, information and quantum information geometry. After his habilitation in mathematics at the University of Leipzig in 2000 he worked as a Deutsche Forschungsgemeinschaft Heisenberg Fellow at Westfälische Wilhems-Universität Münster, and from 2005-2010 he held a professorship at Christian-Albrechts-Universität Kiel. In the fall of 2010 he was appointed professor of mathematics at Karlsruhe Institute of Technology (KIT), a position he currently holds. David Wraith's main mathematical interests concern the existence of Riemannian metrics satisfying various kinds of curvature conditions and their topological implications. Most of his work to date has focused on the existence of positive Ricci curvature metrics. He has worked at the National University of Ireland Maynooth since 1997. Part I: Positive scalar curvature.- The (moduli) space of all Riemannian metrics.- Clifford algebras and spin.- Dirac operators and index theorems.- Early results on the space of positive scalar curvature metrics.- Kreck-Stolz invariants.- Applications of Kreck-Stolz invariants.- The eta invariant and applications.- The case of dimensions 2 and 3.- The observer moduli space and applications.- Other topological structures.- Negative scalar and Ricci curvature.- Part II: Sectional curvature.- Moduli spaces of compact manifolds with positive or non-negative sectional curvature.- Moduli spaces of compact manifolds with negative and non-positive sectional curvature.- Moduli spaces of non-compact manifolds with non-negative sectional curvature.- Positive pinching and the Klingenberg-Sakai conjecture. ISBN: 9783034809474 Due to new EU packaging regulations, we are currently unable to ship to many EU countries. Shipping to Germany, the Netherlands, Ireland, Finland, and the Baltic states is possible. Deliveries to border-based parcel lockers or cross-border parcel forwarding services remain possible. Shipping to all countries outside the EU also remains possible. Sprache: Englisch Gewicht in Gramm: 236 Broschur, Maße: 16.8 cm x 0.79 cm x 24 cm.…

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Etat : New. Series: Oberwolfach Seminars. Num Pages: 133 pages, 3 black & white illustrations, biography. BIC Classification: PBMS; PBPD. Category: (P) Professional & Vocational. Dimension: 240 x 168 x 7. Weight in Grams: 244. . 2015. Corr. 2nd printing. Paperback. . . . .

Paperback. Etat : Brand New. 136 pages. 9.25x6.75x0.50 inches. In Stock.

Etat : New. Series: Oberwolfach Seminars. Num Pages: 133 pages, 3 black & white illustrations, biography. BIC Classification: PBMS; PBPD. Category: (P) Professional & Vocational. Dimension: 240 x 168 x 7. Weight in Grams: 244. . 2015. Corr. 2nd printing. Paperback. . . . . Books ship from the US and Ireland.…

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PAP. Etat : New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Soft cover. Etat : As New. 1st Edition, Limited Edition. Like new. Limited pressing. Out of print. H. P. Lovecraft wrote "The Call of Cthulhu" in 1926, initiating the Cthulhu Mythos, one of the most widely imitated shared-world universes in weird fiction. Even in his lifetime, many other writers added to the Mythos, and after his death hundreds if not thousands of authors of weird, fantasy, and science fiction have added their distinctive elaborations on Lovecraft's basic themes and ideas. This volume features some of the best Cthulhu Mythos writing over the past century. Beginning with such rare but classic stories as Mearle Prout's "The House of the Worm" and Robert Barbour Johnson's "Far Below," from the pages of Weird Tales, the anthology moves on to James Wade's novella "The Deep Ones" and Ramsey Campbell's refreshing riff on the "forbidden book" motif, "The Franklyn Paragraphs." Acclaimed stories by T. E. D. Klein, Thomas Ligotti, Neil Gaiman, and W. H. Pugmire are also included. The book includes an array of original stories by such leading authors of Lovecraftian fiction as Caitlín R. Kiernan, Joseph S. Pulver, Sr., Donald Tyson, Cody Goodfellow, and Michael Shea. Gemma Files contributes a richly textured novella, while Jonathan Thomas offers a story full of his distinctive melding of horror and satire. A Mountain Walked is chock-full of stories old and new that highlight the endless variations that can be played on H. P. Lovecraft's signature creation. S. T. Joshi is the leading authority on H. P. Lovecraft. He is the author of I Am Providence: The Life and Times of H. P. Lovecraft and the editor of the Black Wings series of Lovecraftian fiction. He edits the Lovecraft Annual and the Weird Fiction Review. Summer, Irina; Ho, David (illustrateur).…

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Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book studies certain spaces of Riemannian metrics on both compact and non-compact manifolds. These spaces are defined by various sign-based curvature conditions, with special attention paid to positive scalar curvature and non-negative sectional curvature, though we also consider positive Ricci and non-positive sectional curvature. If we form the quotient of such a space of metrics under the action of the diffeomorphism group (or possibly a subgroup) we obtain a moduli space. Understanding the topology of both the original space of metrics and the corresponding moduli space form the central theme of this book. For example, what can be said about the connectedness or the various homotopy groups of such spaces We explore the major results in the area, but provide sufficient background so that a non-expert with a grounding in Riemannian geometry can access this growing area of research. 136 pp. Englisch.…

Paperback. Etat : new. Paperback. It is 1935 just before the break-out of the 2nd Italian-Ethiopian war. Just a year ago while on an unsanctioned expedition near the Blue Nile, an Italian geologist stumbles across the first accounts of a startling revelation that has been hidden over the ages by the monarch of Ethiopia. Soon after, he mysteriously dies from a fatal unknown illness, leaving his last sincere request for his brother to finish his search. Now, Franco Renato, a former mercenary known as the chameleon, is hell-bent on honoring his brother's last wish. He learns that his search begins and ends with the capture of a mysterious man who was recently a chief officer to the emperor of Ethiopia---Sema Melaku. After persuading an ex-military comrade (fascist dictator and prime minister of Italy) for assistance, Franco is on the hunt as he uses his charismatic and exceptional skills to elude colonial forces throughout the Sahel while solving a mystery that will to lead to the discovery of the greatest gift ever to humankind. But just within reach, he is betrayed by a conspiracy that's going to reveal the painful truth behind his brother's death. In this International Thriller, an emperor will struggle to save his country from the Italian Invasion. A fascist dictator who has furtive plans and swear vengeance will be exposed. A servant to the Imperial Palace of Ethiopia will have to depart on a long-awaited quest through the Sahel of Africa. And a former mercenary who will honor his brother by submitting to this last mission will make a great discovery. This story was inspired by the true events that took place during the 2nd Italian-Ethiopian War. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…

Kartoniert / Broschiert. Etat : New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. First book dealing exclusively with this topic which has hitherto only been treated in&nbsporiginal research papersDevelops relevant background&nbspand&nbspexplains the ideas involved Short, concise text with topics ranging from classica.…

Taschenbuch. Etat : Neu. This item is printed on demand - Print on Demand Titel. Neuware -This book studies certain spaces of Riemannian metrics on both compact and non-compact manifolds. These spaces are defined by various sign-based curvature conditions, with special attention paid to positive scalar curvature and non-negative sectional curvature, though we also consider positive Ricci and non-positive sectional curvature. If we form the quotient of such a space of metrics under the action of the diffeomorphism group (or possibly a subgroup) we obtain a moduli space. Understanding the topology of both the original space of metrics and the corresponding moduli space form the central theme of this book. For example, what can be said about the connectedness or the various homotopy groups of such spaces We explore the major results in the area, but provide sufficient background so that a non-expert with a grounding in Riemannian geometry can access this growing area of research.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 136 pp. Englisch.…