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1. |
Record Nr. |
UNINA9910437872803321 |
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Autore |
Gal Sorin G |
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Titolo |
Overconvergence in complex approximation / / Sorin G. Gal |
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Pubbl/distr/stampa |
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New York, : Springer Science, 2013 |
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ISBN |
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Edizione |
[1st ed. 2013.] |
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Descrizione fisica |
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1 online resource (206 p.) |
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Disciplina |
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Soggetti |
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Approximation theory |
Functional analysis |
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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 and index. |
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Nota di contenuto |
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Overconvergence in C of Some Bernstein-Type Operators -- Overconvergence and Convergence in C of Some Integral Convolutions -- Overconvergence in C of the Orthogonal Expansions . |
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Sommario/riassunto |
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This monograph deals with the quantitative overconvergence phenomenon in complex approximation by various operators. The book is divided into three chapters. First, the results for the Schurer-Faber operator, Beta operators of first kind, Bernstein-Durrmeyer-type operators and Lorentz operator are presented. The main focus is on results for several q-Bernstein kind of operators with q > 1, when the geometric order of approximation 1/q^n is obtained not only in complex compact disks but also in quaternion compact disks and in other compact subsets of the complex plane. The focus then shifts to quantitative overconvergence and convolution overconvergence results for the complex potentials generated by the Beta and Gamma Euler's functions. Finally quantitative overconvergence results for the most classical orthogonal expansions (of Chebyshev, Legendre, Hermite, Laguerre and Gegenbauer kinds) attached to vector-valued functions are presented. Each chapter concludes with a notes and open problems section, thus providing stimulation for further research. An extensive bibliography and index complete the text. This book is suitable for researchers and graduate students working in complex approximation and its applications, mathematical analysis and numerical analysis. |
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2. |
Record Nr. |
UNINA9910299677803321 |
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Autore |
Wolf Katrin |
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Titolo |
Grasp Interaction with Tablets / / by Katrin Wolf |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2015 |
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ISBN |
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Edizione |
[1st ed. 2015.] |
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Descrizione fisica |
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1 online resource (139 p.) |
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Collana |
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T-Labs Series in Telecommunication Services, , 2192-2810 |
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Disciplina |
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006.7 |
620 |
620.0042 |
621.382 |
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Soggetti |
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Engineering design |
Multimedia systems |
Signal processing |
Image processing |
Speech processing systems |
Engineering Design |
Media Design |
Signal, Image and Speech Processing |
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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. |
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Nota di contenuto |
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Introduction -- Related Work -- An Ergonomic Gesture Repertoire for Grasp-based Interaction -- Ergonomic Characteristics of Grasp-based Touch Gestures executed on two Tablet Sides -- Interaction Areas on the Front and on the Back of Tablets -- Front- and Back-of-Device Pointing with Direct Touch -- Pointing on Tablets with Grasping Hands -- Design Guidelines -- Conclusion. |
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Sommario/riassunto |
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This book presents guidelines for a future device type: a tablet that allows ergonomic front- and back-of-device interaction. These guidelines help designers and developers of user interfaces to build ergonomic applications for tablet devices, in particular for devices that enable back-of-device interaction. In addition, manufacturers of tablet devices obtain arguments that back-of-device interaction is a |
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promising extension of the interaction design space and results in increased input capabilities, enriched design possibilities, and proven usability. The guidelines are derived from empirical studies and developed to fit the users’ skills to the way the novel device type is held. Three particular research areas that are relevant to develop design guidelines for tablet interaction are investigated: ergonomic gestures, interaction areas, and pointing techniques. |
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