Spaces of Approximating Functions with Haar-like Conditions

Spaces of Approximating Functions with Haar-like Conditions PDF Author: Kazuaki Kitahara
Publisher: Springer
ISBN: 3540484043
Category : Mathematics
Languages : en
Pages : 119

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Book Description
Tchebycheff (or Haar) and weak Tchebycheff spaces play a central role when considering problems of best approximation from finite dimensional spaces. The aim of this book is to introduce Haar-like spaces, which are Haar and weak Tchebycheff spaces under special conditions. It studies topics of subclasses of Haar-like spaces, that is, classes of Tchebycheff or weak Tchebycheff spaces, spaces of vector-valued monotone increasing or convex functions and spaces of step functions. The notion of Haar-like spaces provides a general point of view which includes the theories of approximation from the above spaces. The contents are largely new. Graduate students and researchers in approximation theory will be able to read this book with only basic knowledge of analysis, functional analysis and linear algebra.

Spaces of Approximating Functions with Haar-like Conditions

Spaces of Approximating Functions with Haar-like Conditions PDF Author: Kazuaki Kitahara
Publisher: Springer
ISBN: 3540484043
Category : Mathematics
Languages : en
Pages : 119

Get Book Here

Book Description
Tchebycheff (or Haar) and weak Tchebycheff spaces play a central role when considering problems of best approximation from finite dimensional spaces. The aim of this book is to introduce Haar-like spaces, which are Haar and weak Tchebycheff spaces under special conditions. It studies topics of subclasses of Haar-like spaces, that is, classes of Tchebycheff or weak Tchebycheff spaces, spaces of vector-valued monotone increasing or convex functions and spaces of step functions. The notion of Haar-like spaces provides a general point of view which includes the theories of approximation from the above spaces. The contents are largely new. Graduate students and researchers in approximation theory will be able to read this book with only basic knowledge of analysis, functional analysis and linear algebra.

Spaces of Approximating Functions with Haar-Like Conditions

Spaces of Approximating Functions with Haar-Like Conditions PDF Author: Kazuaki Kitahara
Publisher:
ISBN: 9783662206386
Category :
Languages : en
Pages : 124

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Book Description


Nearly Projective Boolean Algebras

Nearly Projective Boolean Algebras PDF Author: Lutz Heindorf
Publisher: Springer
ISBN: 3540491015
Category : Mathematics
Languages : en
Pages : 210

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Book Description
The book is a fairly complete and up-to-date survey of projectivity and its generalizations in the class of Boolean algebras. Although algebra adds its own methods and questions, many of the results presented were first proved by topologists in the more general setting of (not necessarily zero-dimensional) compact spaces. An appendix demonstrates the application of advanced set-theoretic methods to the field. The intended readers are Boolean and universal algebraists. The book will also be useful for general topologists wanting to learn about kappa-metrizable spaces and related classes. The text is practically self-contained but assumes experience with the basic concepts and techniques of Boolean algebras.

Topics in the Theory of Riemann Surfaces

Topics in the Theory of Riemann Surfaces PDF Author: Robert D.M. Accola
Publisher: Springer
ISBN: 3540490566
Category : Mathematics
Languages : en
Pages : 117

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Book Description
The book's main concern is automorphisms of Riemann surfaces, giving a foundational treatment from the point of view of Galois coverings, and treating the problem of the largest automorphism group for a Riemann surface of a given genus. In addition, the extent to which fixed points of automorphisms are generalized Weierstrass points is considered. The extremely useful inequality of Castelnuovo- Severi is also treated. While the methods are elementary, much of the material does not appear in the current texts on Riemann surfaces, algebraic curves. The book is accessible to a reader who has had an introductory course on the theory of Riemann surfaces or algebraic curves.

Kodaira-Spencer Maps in Local Algebra

Kodaira-Spencer Maps in Local Algebra PDF Author: Bernd Herzog
Publisher: Springer
ISBN: 3540491031
Category : Mathematics
Languages : en
Pages : 195

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Book Description
The monograph contributes to Lech's inequality - a 30-year-old problem of commutative algebra, originating in the work of Serre and Nagata, that relates the Hilbert function of the total space of an algebraic or analytic deformation germ to the Hilbert function of the parameter space. A weakened version of Lech's inequality is proved using a construction that can be considered as a local analog of the Kodaira-Spencer map known from the deformation theory of compact complex manifolds. The methods are quite elementary, and will be of interest for researchers in deformation theory, local singularities and Hilbert functions.

Algebraic Cycles and Hodge Theory

Algebraic Cycles and Hodge Theory PDF Author: Mark L. Green
Publisher: Springer Science & Business Media
ISBN: 9783540586920
Category : Mathematics
Languages : en
Pages : 292

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Book Description
The main goal of the CIME Summer School on "Algebraic Cycles and Hodge Theory" has been to gather the most active mathematicians in this area to make the point on the present state of the art. Thus the papers included in the proceedings are surveys and notes on the most important topics of this area of research. They include infinitesimal methods in Hodge theory; algebraic cycles and algebraic aspects of cohomology and k-theory, transcendental methods in the study of algebraic cycles.

Regular Variation and Differential Equations

Regular Variation and Differential Equations PDF Author: Vojislav Maric
Publisher: Springer Science & Business Media
ISBN: 9783540671602
Category : Mathematics
Languages : en
Pages : 148

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Book Description
This book constitutes the refereed proceedings of the Third Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD '99, held in Beijing, China, in April 1999. The 29 revised full papers presented together with 37 short papers were carefully selected from a total of 158 submissions. The book is divided into sections on emerging KDD technology; association rules; feature selection and generation; mining in semi-unstructured data; interestingness, surprisingness, and exceptions; rough sets, fuzzy logic, and neural networks; induction, classification, and clustering; visualization; causal models and graph-based methods; agent-based and distributed data mining; and advanced topics and new methodologies.

Representations of Fundamental Groups of Algebraic Varieties

Representations of Fundamental Groups of Algebraic Varieties PDF Author: Kang Zuo
Publisher: Springer Science & Business Media
ISBN: 9783540663126
Category : Mathematics
Languages : en
Pages : 152

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Book Description
Using harmonic maps, non-linear PDE and techniques from algebraic geometry this book enables the reader to study the relation between fundamental groups and algebraic geometry invariants of algebraic varieties. The reader should have a basic knowledge of algebraic geometry and non-linear analysis. This book can form the basis for graduate level seminars in the area of topology of algebraic varieties. It also contains present new techniques for researchers working in this area.

Semiclassical Analysis for Diffusions and Stochastic Processes

Semiclassical Analysis for Diffusions and Stochastic Processes PDF Author: Vassili N. Kolokoltsov
Publisher: Springer
ISBN: 3540465871
Category : Mathematics
Languages : en
Pages : 360

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Book Description
The monograph is devoted mainly to the analytical study of the differential, pseudo-differential and stochastic evolution equations describing the transition probabilities of various Markov processes. These include (i) diffusions (in particular,degenerate diffusions), (ii) more general jump-diffusions, especially stable jump-diffusions driven by stable Lévy processes, (iii) complex stochastic Schrödinger equations which correspond to models of quantum open systems. The main results of the book concern the existence, two-sided estimates, path integral representation, and small time and semiclassical asymptotics for the Green functions (or fundamental solutions) of these equations, which represent the transition probability densities of the corresponding random process. The boundary value problem for Hamiltonian systems and some spectral asymptotics ar also discussed. Readers should have an elementary knowledge of probability, complex and functional analysis, and calculus.

Diffraction by an Immersed Elastic Wedge

Diffraction by an Immersed Elastic Wedge PDF Author: Jean-Pierre Croisille
Publisher: Springer Science & Business Media
ISBN: 9783540668107
Category : Mathematics
Languages : en
Pages : 146

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Book Description
This series reports on new developments in mathematical research and teaching - quickly, informally and at a high level. The type of material considered for publication includes 1. Research monographs 2. Lectures on a new field or presentations of a new angle in a classical field 3. Summer schools and intensive courses on topics of current research. Texts which are out of print but still in demand may also be considered. The timeliness of a manuscript is sometimes more important than its form, which might be preliminary or tentative. Details of the editorial policy can be found on the inside front-cover of a current volume. Manuscripts should be submitted in camera-ready form according to Springer-Verlag's specification: technical instructions will be sent on request. TEX macros may be found at: http://www.springer.de/math/authors/b- tex.html Select the version of TEX you use and then click on "Monographs". A subject index should be included. We recommend contacting the publisher or the series editors at an early stage of your project. Addresses are given on the inside back-cover.