David Ruy (12 results)

paperback. Condition: New.

Paperback. Condition: New. 1st ed. 2022. This book develops tools to handle C*-algebras arising as completions of convolution algebras of sections of line bundles over possibly non-Hausdorff groupoids. A fundamental result of Gelfand describes commutative C*-algebras as continuous functions on locally compact Hausdorff spaces. Kumjian, and later Renault, showed that Gelfand's result can be extended to include non-commutative C*-algebras containing a commutative C*-algebra. In their setting, the C*-algebras in question may be described as the completion of convolution algebras of functions on twisted Hausdorff groupoids with respect to a certain norm. However, there are many natural settings in which the Kumjian-Renault theory does not apply, in part because the groupoids which arise are not Hausdorff. In fact, non-Hausdorff groupoids have been a source of surprising counterexamples and technical difficulties for decades. Including numerous illustrative examples, this book extends the Kumjian-Renault theory toa much broader class of C*-algebras. This work will be of interest to researchers and graduate students in the area of groupoid C*-algebras, the interface between dynamical systems and C*-algebras, and related fields.…

Paperback. Condition: New.

Condition: New. In English.

Condition: New. KlappentextrnrnCULINARY LESSONS - The Space of Food is based on a series of events, Culinary Lessons, which were hosted by the Staedelschule Architecture Class and which engaged with the relation between food, art and architecture. The series add.

Condition: New. 1st ed. 2022 edition NO-PA16APR2015-KAP.

Paperback. Condition: Brand New. 166 pages. 9.25x6.10x0.36 inches. In Stock.

Paperback. Condition: New. 1st ed. 2022. This book develops tools to handle C*-algebras arising as completions of convolution algebras of sections of line bundles over possibly non-Hausdorff groupoids. A fundamental result of Gelfand describes commutative C*-algebras as continuous functions on locally compact Hausdorff spaces. Kumjian, and later Renault, showed that Gelfand's result can be extended to include non-commutative C*-algebras containing a commutative C*-algebra. In their setting, the C*-algebras in question may be described as the completion of convolution algebras of functions on twisted Hausdorff groupoids with respect to a certain norm. However, there are many natural settings in which the Kumjian-Renault theory does not apply, in part because the groupoids which arise are not Hausdorff. In fact, non-Hausdorff groupoids have been a source of surprising counterexamples and technical difficulties for decades. Including numerous illustrative examples, this book extends the Kumjian-Renault theory toa much broader class of C*-algebras. This work will be of interest to researchers and graduate students in the area of groupoid C*-algebras, the interface between dynamical systems and C*-algebras, and related fields.…

Tapa Dura c/ Sobrecubierta. Condition: Muy bien. Dust Jacket Condition: Bien. Primera edición. PRIMERA EDICIÓN. FIRST EDITION. Realizado en colaboración con el instituto Mexicano de Cinematografía. EXCELENTE ejemplar con excelente sobrecubierta. 213pp.

Soft cover. Condition: Good. In Portuguese. São Paulo, Teoria e Prática, outubro de 1967. Brochura, 21x13cm, 183p. Pequena perda de papel na contracapa; leve desgaste nas bordas da capa e da lombada. Exemplar completo, sem carimbos, anotações, grifos, ou folhas soltas. Número 2 da célebre revista dos jovens intelectuais de esquerda da Usp, que só teve 3 números. Com a edição pré-original do poema Por você, por mim, de Ferreira Gullar sobre a guerra do Vietnã, mais contribuições de Bento Prado Jr. (A Sereia Desmistificada), Ruy Fausto, Roberto Schwarz (nota sobre a Vanguarda e o conformismo), Anatol Rosenfeld, Gilda de Mello e Souza, David Alexander, Eder Sader, Lourdes Sola, Zulmira Ribeiro Tavares. e também "Um Documento "Estudantil" elaborado pelo diretório acadêmico da faculdade de Filosofia da Usp, anônimo. Raro.…

Condition: New. Print on Demand.

Condition: New. PRINT ON DEMAND.