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1. |
Record Nr. |
UNISA990000447900203316 |
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Autore |
BRAUDEL, Fernand |
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Titolo |
L' identità della Francia : gli uomini e le cose / Fernand Braudel ; traduzione di Margherita Botto e Andrea Caizzi |
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Pubbl/distr/stampa |
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Milano, : Il Saggiatore, 1988 |
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ISBN |
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88-04-31919-4 |
88-04-31920-8 |
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Descrizione fisica |
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Collana |
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Disciplina |
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Soggetti |
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Francia - Storia sociale - Sec. 20 |
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Collocazione |
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X.1.B. 837/1(V E COLL. 139/43) |
X.1.B. 837/2(V E COLL. 139/43 BIS) |
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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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2. |
Record Nr. |
UNISA996418279603316 |
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Autore |
Alpay Daniel |
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Titolo |
Quaternionic de Branges Spaces and Characteristic Operator Function [[electronic resource] /] / by Daniel Alpay, Fabrizio Colombo, Irene Sabadini |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2020 |
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ISBN |
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Edizione |
[1st ed. 2020.] |
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Descrizione fisica |
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1 online resource (X, 116 p. 1 illus.) |
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Collana |
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SpringerBriefs in Mathematics, , 2191-8198 |
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Disciplina |
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Soggetti |
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Functional analysis |
Operator theory |
Functions of complex variables |
Functional Analysis |
Operator Theory |
Functions of a Complex Variable |
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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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Preliminaries -- Quaternions and matrices -- Slice hyperholomorphic functions -- Rational functions -- Operator models -- Structure theorems for H(A;B) spaces -- J-contractive functions -- The characteristic operator function -- L() spaces and linear fractional transformations -- Canonical differential systems. |
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Sommario/riassunto |
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This work contributes to the study of quaternionic linear operators. This study is a generalization of the complex case, but the noncommutative setting of quaternions shows several interesting new features, see e.g. the so-called S-spectrum and S-resolvent operators. In this work, we study de Branges spaces, namely the quaternionic counterparts of spaces of analytic functions (in a suitable sense) with some specific reproducing kernels, in the unit ball of quaternions or in the half space of quaternions with positive real parts. The spaces under consideration will be Hilbert or Pontryagin or Krein spaces. These spaces are closely related to operator models that are also discussed. The focus of this book is the notion of characteristic operator function |
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of a bounded linear operator A with finite real part, and we address several questions like the study of J-contractive functions, where J is self-adjoint and unitary, and we also treat the inverse problem, namely to characterize which J-contractive functions are characteristic operator functions of an operator. In particular, we prove the counterpart of Potapov's factorization theorem in this framework. Besides other topics, we consider canonical differential equations in the setting of slice hyperholomorphic functions and we define the lossless inverse scattering problem. We also consider the inverse scattering problem associated with canonical differential equations. These equations provide a convenient unifying framework to discuss a number of questions pertaining, for example, to inverse scattering, non-linear partial differential equations and are studied in the last section of this book. |
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3. |
Record Nr. |
UNINA9910798155503321 |
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Autore |
Moser Helen |
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Titolo |
Barriers to bankable infrastructure : incentivizing private investment to fill the global infrastructure gap / / project director, Daniel F. Runde ; principal author, Helen Moser ; contributing author, Erin Nealer |
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Pubbl/distr/stampa |
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Lanham, Maryland : , : Rowman & Littlefield, , 2016 |
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ISBN |
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Descrizione fisica |
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1 online resource (42 p.) |
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Collana |
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A Report of the CSIS Project on U.S. Leadership in Development ; ; March 2016 |
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Disciplina |
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Soggetti |
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Infrastructure (Economics) |
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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 contenuto |
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Barriers To Bankable Infrastructure; Contents; Acknowledgments; Executive Summary; Barriers to Bankable Infrastructure; Introduction; Background; Infrastructure Case Studies; Areas for Reform; Recommendations; Conclusion; Appendix. Infrastructure Project Preparation Facilities (IPPFs); About the Project Director and Authors |
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Sommario/riassunto |
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This report discusses the estimated 1 trillion annual global |
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infrastructure gap and provides recommendations on how U.S. agencies and multilateral development banks can better incentivize private-sector investment in global infrastructure. |
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