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Author: J. R. Higgins
Publisher: Cambridge University Press
ISBN: 9780521604888
Category : Mathematics
Languages : en
Pages : 152
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Book Description
Presents methods for testing sets of special functions for completeness and basis properties, mostly in L2 and L2 spaces.
Author: J. R. Higgins
Publisher: Cambridge University Press
ISBN: 9780521604888
Category : Mathematics
Languages : en
Pages : 152
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Book Description
Presents methods for testing sets of special functions for completeness and basis properties, mostly in L2 and L2 spaces.
Author: Odysseus Makridis
Publisher: Cambridge Scholars Publishing
ISBN: 1527556379
Category : Philosophy
Languages : en
Pages : 608
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Book Description
This book constructs an idealized version of what the author calls syntacticism, a school of thought in the philosophy of logic which is congenial to analytical philosophy, logical positivism, and anti-metaphysical nominalism. It examines in detail both technical metalogical and broad philosophic issues associated with this way of thinking about logic, and specifically addresses anomalies around symbolic expressivity, which is crucial for this approach, with a view to provide both a deeper understanding and a critique. The range of fields and interests addressed include: the philosophy of logic, formal logic and mathematical logic, the analytical school of philosophy, logical positivism and nominalism, parallels between thinking about logic and the formalist school in the philosophy of mathematics, the history of modern logic, Wittgenstein’s Tractatus, Leśniewski’s protothetic, dialogue logic, and combinatorial logic.
Author: Marinus A. Kaashoek
Publisher: Springer Nature
ISBN: 3031045084
Category : Mathematics
Languages : en
Pages : 358
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Book Description
This monograph presents necessary and sufficient conditions for completeness of the linear span of eigenvectors and generalized eigenvectors of operators that admit a characteristic matrix function in a Banach space setting. Classical conditions for completeness based on the theory of entire functions are further developed for this specific class of operators. The classes of bounded operators that are investigated include trace class and Hilbert-Schmidt operators, finite rank perturbations of Volterra operators, infinite Leslie operators, discrete semi-separable operators, integral operators with semi-separable kernels, and period maps corresponding to delay differential equations. The classes of unbounded operators that are investigated appear in a natural way in the study of infinite dimensional dynamical systems such as mixed type functional differential equations, age-dependent population dynamics, and in the analysis of the Markov semigroup connected to the recently introduced zig-zag process.
Author: F. Darari
Publisher: IOS Press
ISBN: 1643680358
Category : Computers
Languages : en
Pages : 194
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Book Description
The increasing amount of structured data available on the Web is laying the foundations for a global-scale knowledge base. But the ever increasing amount of Semantic Web data gives rise to the question – how complete is that data? Though data on the Semantic Web is generally incomplete, some may indeed be complete. In this book, the author deals with how to manage and consume completeness information about Semantic Web data. In particular, the book explores how completeness information can guarantee the completeness of query answering. Optimization techniques for completeness reasoning and the conducting of experimental evaluations are provided to show the feasibility of the approaches, as well as a technique for checking the soundness of queries with negation via reduction to query completeness checking. Other topics covered include completeness information with timestamps, and two demonstrators – CORNER and COOL-WD – are provided to show how a completeness framework can be realized. Finally, the book investigates an automated method to generate completeness statements from text on the Web. The book will be of interest to anyone whose work involves dealing with Web-data completeness.
Author: Martin Carrier
Publisher: Springer Science & Business Media
ISBN: 9401109109
Category : Science
Languages : en
Pages : 296
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Book Description
Earlier in this century, many philosophers of science (for example, Rudolf Carnap) drew a fairly sharp distinction between theory and observation, between theoretical terms like 'mass' and 'electron', and observation terms like 'measures three meters in length' and 'is _2° Celsius'. By simply looking at our instruments we can ascertain what numbers our measurements yield. Creatures like mass are different: we determine mass by calculation; we never directly observe a mass. Nor an electron: this term is introduced in order to explain what we observe. This (once standard) distinction between theory and observation was eventually found to be wanting. First, if the distinction holds, it is difficult to see what can characterize the relationship between theory :md observation. How can theoretical terms explain that which is itself in no way theorized? The second point leads out of the first: are not the instruments that provide us with observational material themselves creatures of theory? Is it really possible to have an observation language that is entirely barren of theory? The theory-Iadenness of observation languages is now an accept ed feature of the logic of science. Many regard such dependence of observation on theory as a virtue. If our instruments of observation do not derive their meaning from theories, whence comes that meaning? Surely - in science - we have nothing else but theories to tell us what to try to observe.
Author: Oded Goldreich
Publisher: Cambridge University Press
ISBN: 1139490095
Category : Computers
Languages : en
Pages :
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Book Description
The focus of this book is the P versus NP Question and the theory of NP-completeness. It also provides adequate preliminaries regarding computational problems and computational models. The P versus NP Question asks whether or not finding solutions is harder than checking the correctness of solutions. An alternative formulation asks whether or not discovering proofs is harder than verifying their correctness. It is widely believed that the answer to these equivalent formulations is positive, and this is captured by saying that P is different from NP. Although the P versus NP Question remains unresolved, the theory of NP-completeness offers evidence for the intractability of specific problems in NP by showing that they are universal for the entire class. Amazingly enough, NP-complete problems exist, and furthermore hundreds of natural computational problems arising in many different areas of mathematics and science are NP-complete.
Author: Sasun Yakubov
Publisher: Routledge
ISBN: 0429652178
Category : Mathematics
Languages : en
Pages : 264
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Book Description
The precise mathematical investigation of various natural phenomena is an old and difficult problem. This book is the first to deal systematically with the general non-selfadjoint problems in mechanics and physics. It deals mainly with bounded domains with smooth boundaries, but also considers elliptic boundary value problems in tube domains, i.e. in non-smooth domains. This volume will be of particular value to those working in differential equations, functional analysis, and equations of mathematical physics.
Author: Jürgen Dassow
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3112735870
Category : Computers
Languages : en
Pages : 148
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Book Description
No detailed description available for "Completeness Problems in the Structural Theory of Automata".
Author: Kalle Kaarli
Publisher: CRC Press
ISBN: 9781584882039
Category : Mathematics
Languages : en
Pages : 378
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Book Description
Boolean algebras have historically played a special role in the development of the theory of general or "universal" algebraic systems, providing important links between algebra and analysis, set theory, mathematical logic, and computer science. It is not surprising then that focusing on specific properties of Boolean algebras has lead to new directions in universal algebra. In the first unified study of polynomial completeness, Polynomial Completeness in Algebraic Systems focuses on and systematically extends another specific property of Boolean algebras: the property of affine completeness. The authors present full proof that all affine complete varieties are congruence distributive and that they are finitely generated if and only if they can be presented using only a finite number of basic operations. In addition to these important findings, the authors describe the different relationships between the properties of lattices of equivalence relations and the systems of functions compatible with them. An introductory chapter surveys the appropriate background material, exercises in each chapter allow readers to test their understanding, and open problems offer new research possibilities. Thus Polynomial Completeness in Algebraic Systems constitutes an accessible, coherent presentation of this rich topic valuable to both researchers and graduate students in general algebraic systems.
Author: Witold A. Pogorzelski
Publisher: Springer Science & Business Media
ISBN: 3764385189
Category : Mathematics
Languages : en
Pages : 186
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Book Description
This book develops the theory of one of the most important notions in the methodology of formal systems. Particularly, completeness plays an important role in propositional logic where many variants of the notion have been defined. This approach allows also for a more profound view upon some essential properties of propositional systems. For these purposes, the theory of logical matrices, and the theory of consequence operations is exploited.
