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Record Nr. |
UNINA9910788666203321 |
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Titolo |
Algebraic and arithmetic theory of quadratic forms : proceedings of the International Conference on the Algebraic and Arithmetic Theory of Quadratic Forms, December 11-18, 2002, Universidad de Talca, Chile / / Ricardo Baeza [and three others], editors |
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Pubbl/distr/stampa |
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Providence, Rhode Island : , : American Mathematical Society, , [2004] |
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©2004 |
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ISBN |
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0-8218-7934-0 |
0-8218-3441-X |
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Descrizione fisica |
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1 online resource (364 p.) |
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Collana |
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Contemporary mathematics ; ; 344 |
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Disciplina |
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Soggetti |
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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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Contents -- Preface -- Conference Participants -- The Milnor Sequence For Wqf(X) In Characteristic 2 When F Is Perfect -- Spinor Norm For Local Skew-Hermitian Forms -- An Introduction To Triangular Witt Groups And A Survey Of Applications -- Regularity Properties Of Positive Definite Integral Quadratic Forms -- Effective Results On Representations Of Quadratic Forms -- Quaternary Quadratic Forms And Hilbert Modular Surfaces -- Real Semigroups And Abstract Real Spectra. I -- The Role Of Characteristic Vectors in the Neighbour Lattice Process -- 7.2 The Algebraic Closure Of The Base Field Inside The Function Field Of A P-Form -- 7.3 P-Splitting Of A P-Form Over The Function Field Of A P-Form -- 7.4 Isotropy Of P-Forms Over Function Fields Of P-Forms -- 7.5 Some Remarks On Height And Splitting Patterns Of P-Forms -- 7.6 Some Applications To Quasi-Pfister Neighbors -- 8. The Behaviour Of Differential Forms Under Function Field Extensions Of P-Forms -- Local Densities And The Representations Of An Integer By A Definite Quadratic Form -- Periodicity Of Hermitian K-Theory And Milnors K-Groups -- Third Proof Of Second Gap In Dimensions Of Quadratic Forms From In -- Recent Developments On Universal Forms -- Special Siegel Modular Forms And Singular Series Polynomials Of Quadratic Forms -- Quasi- |
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Hyperbolicity Of Totally Singular Quadratic Forms -- Witt Kernels Of Triquadratic Extensions -- Anti-Automorphisms Of The Second Kind -- Reduction Modulo 2 And 3 Of Euclidean Lattices, Ii -- The Elementary Type Conjecture In Quadratic Form Theory -- 1. Quadratic Form Schemes -- 2. Quaternionic Mappings And Witt Rings -- 3. Elementary Constructions -- 4. Uniqueness Results And Counting -- 5. The Reduced Case -- 6. The Case Of Small Value Sets -- 7. The Case Of Few Quaternion Algebras -- 8. Quotients -- 9. Morphisms And Field Extensions -- 10. Connections To Galois Theory -- On Hilbert's Theorem About Ternary Quartics -- Representation By Integral Quadratic Forms: A Survey -- Representations By Spinor Genera Of Ternary Quadratic Forms -- A Survey And A Complement Of Fundamental Hermite Constants. |
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2. |
Record Nr. |
UNINA9910824559703321 |
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Autore |
Peterson A. Townsend (Andrew Townsend), <1964-> |
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Titolo |
Mapping disease transmission risk : enriching models using biogeography and ecology / / A. Townsend Peterson |
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Pubbl/distr/stampa |
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Baltimore : , : Johns Hopkins University Press, , 2014 |
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ISBN |
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Descrizione fisica |
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1 online resource (225 p.) |
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Disciplina |
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Soggetti |
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Medical mapping |
Medical geography |
Public health surveillance |
Epidemiology |
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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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""Cover""; ""Contents""; ""Preface""; ""Acknowledgments""; ""1 Introduction""; ""Ecology and Biogeography""; ""This Book""; ""Conclusions""; ""Part I: Distributional Ecology""; ""2 General Conceptual Framework for Species� Distributions""; ""Historical Background""; ""A General Schema of Distributional Ecology""; ""Disease Systems""; ""Conclusions""; ""3 Status of Data for Understanding Disease Distributions""; ""Disease Case-Occurrence Data Sets""; |
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""Relevant Biodiversity Occurrence Data Sets""; ""Georeferencing""; ""The Meaning of No Records""; ""Conclusions"" |
""4 Current Tools for Understanding Disease Distributions""""The Current Toolkit""; ""Shortcomings of the Current Methodologies""; ""Conclusions""; ""Part II: Disease Modeling Basics""; ""5 Modifications to the Basic Framework""; ""Disease Peculiarities""; ""Real-World Examples: West Nile Virus and Others""; ""Implications for Disease Modeling""; ""Conclusions""; ""6 Modeling Components versus Outcomes""; ""Disease Transmission Systems as Sets of Interacting Species""; ""Black-Box Approaches""; ""Component-Based Approaches""; ""Combined Approaches""; ""Conclusions"" |
""7 Space-Only versus Space-and-Environment Models""""Examples and Illustrations""; ""Contrasting the Two Types of Models""; ""Conclusions""; ""Part III: Preparing the Data""; ""8 Garbage-In-Garbage-Out Principle""; ""Problems with Data Quality""; ""Biases Created by Geography""; ""Conclusions""; ""9 Assembling Occurrence Data""; ""General Considerations""; ""Obtaining and Improving Occurrence Data""; ""Compatibility and Study Design""; ""Conclusions""; ""10 Assembling Environmental Data""; ""Relevance to Species� Distributions""; ""General Considerations"" |
""Modifiable Areal Unit Problem""""Specific Data Resources""; ""Conclusions""; ""11 Study Areas and BAM""; ""Defining the Area M""; ""Sampling Considerations""; ""BAM Configurations""; ""Details of M and A for Model Transfers""; ""Conclusions""; ""Part IV: Developing Models""; ""12 Calibrating Niche Models""; ""Introduction to Niche Models""; ""Nuts and Bolts""; ""Calibrating the “Best� Model""; ""Transferring and Extrapolating""; ""Characterizing Ecological Niches""; ""Conclusions""; ""13 Processing Raw Outputs into Useful Maps""; ""Choosing Appropriate Thresholds"" |
""From Potential to Actual Distributions""""Projecting and Transferring Models""; ""Conclusions""; ""14 Evaluating Niche Models""; ""Controversies and Inappropriate Approaches""; ""Basic Concepts""; ""The Confusion Matrix and Its Implications""; ""Binary Model Evaluation""; ""Continuous Model Evaluation""; ""Model Evaluation and Model Performance""; ""Conclusions""; ""15 Developing Risk Maps""; ""Initial Estimates""; ""Risk Modifiers""; ""Type I versus Type II Errors""; ""Overlay, Testing, and Simulation""; ""Conclusions""; ""Part V: Examples of Applications""; ""16 Identifying Risk Factors"" |
""Black-Box Disease Ecology"" |
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