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[null,"1.","Record Nr.",null,"UNINA9910783917103321"]
[null,null,"Autore",null,"Rofe-Beketov Fedor S"]
[null,null,"Titolo",null,"Spectral analysis of differential operators [[electronic resource] ] : interplay between spectral and oscillatory properties / / Fedor S. Rofe-Beketov, Aleksandr M. Kholkin ; translated by Ognjen Milatovic ; with foreword by Vladimir A. Marchenko"]
[null,null,"Pubbl/distr/stampa",null,"Hackensack, NJ, : World Scientific, c2005"]
[null,null,"ISBN",null,"1-281-90582-8"]
[{"$nulls":4},"9786611905828"]
[{"$nulls":4},"981-270-345-4"]
[null,null,"Descrizione fisica",null,"1 online resource (463 p.)"]
[null,null,"Collana",null,"World Scientific monograph series in mathematics ; ; v. 7"]
[null,null,"Disciplina",null,"515/.7222"]
[null,null,"Soggetti",null,"Spectral theory (Mathematics)"]
[{"$nulls":4},"Differential operators"]
[{"$nulls":4},"Selfadjoint operators"]
[{"$nulls":4},"Hilbert space"]
[{"$nulls":4},"Operator theory"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Description based upon print version of record."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references (p. 359-429) and index."]
[null,null,"Nota di contenuto",null,"Foreword; Contents; Preface; Acknowledgments; Introduction; 1. Relation Between Spectral and Oscillatory Properties for the Matrix Sturm-Liouville Problem; 2. Fundamental System of Solutions for an Operator Differential Equation with a Singular Boundary Condition; 3. Dependence of the Spectrum of Operator Boundary Problems on Variations of a Finite or Semi-Infinite Interval; 4. Relation Between Spectral and Oscillatory Properties for Operator Differential Equations of Arbitrary Order"]
[{"$nulls":4},"5. Self-Adjoint Extensions of Systems of Differential Equations of Arbitrary Order on an Infinite Interval in the Absolutely Indefinite Case6. Discrete Levels in Spectral Gaps of Perturbed Schrodinger and Hill Operators; Appendix A Self-Adjoint Extensions of Differential Opera- tors on a Finite Interval in Spaces of Vector-Functions; Bibliography; List of Symbols; Index"]
[null,null,null,"Sommario/riassunto","This is the first monograph devoted to the Sturm oscillatory theory for infinite systems of differential equations and its relations with the spectral theory. It aims to study a theory of self-adjoint problems for such systems, based on an elegant method of binary relations. Another "]
[{"$nulls":4},"topic investigated in the book is the behavior of discrete eigenvalues which appear in spectral gaps of the Hill operator and almost periodic Schrödinger operators due to local perturbations of the potential (e.g., modeling impurities in crystals). The book is based on results that have not been presented in other"]
[null,"2.","Record Nr.",null,"UNINA9910299445903321"]
[null,null,"Autore",null,"Sachse Agnes"]
[null,null,"Titolo",null,"OpenGeoSys-Tutorial : Computational Hydrology I: Groundwater Flow Modeling / / by Agnes Sachse, Karsten Rink, Wenkui He, Olaf Kolditz"]
[null,null,"Pubbl/distr/stampa",null,"Cham : , : Springer International Publishing : , : Imprint : Springer, , 2015"]
[null,null,"ISBN",null,"3-319-13335-7"]
[null,null,"Edizione",null,"[1st ed. 2015.]"]
[null,null,"Descrizione fisica",null,"1 online resource (117 p.)"]
[null,null,"Collana",null,"SpringerBriefs in Earth System Sciences, , 2191-589X"]
[null,null,"Disciplina",null,"551.49015118"]
[null,null,"Soggetti",null,"Hydrogeology"]
[{"$nulls":4},"Geology—Statistical methods"]
[{"$nulls":4},"Computer simulation"]
[{"$nulls":4},"Quantitative Geology"]
[{"$nulls":4},"Simulation and Modeling"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Description based upon print version of record."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references."]
[null,null,"Nota di contenuto",null,"1 Hydrology -- 2 Hydrogeology -- 3 Modelling with OpenGeoSys -- 4 Benchmark: Theis problem -- 5 Case Study: Ammer Catchment."]
[null,null,null,"Sommario/riassunto","This tutorial on the application of the open-source software OpenGeoSys (OGS) in computational hydrology is based on a one-week training course at the Helmholtz Centre for Environmental Research in Leipzig, Germany. It provides general information regarding hydrological and groundwater flow modeling and the pre-processing and step-by-step model setups of a case study with OGS and related components such as the OGS Data Explorer. The tutorial also illustrates the application of pre- and post-processing tools such as ArcGIS and ParaView. This book is intended primarily for graduate students and applied scientists who deal with hydrological-system analysis and hydrological modeling. It is also a valuable source of information for practicing hydrologists wishing to further their understanding of the numerical modeling of coupled hydrological-hydrogeological systems. This tutorial is the first in a series that will present further OGS applications in environmental sciences."]