Supports of Convolutions

Supports of Convolutions PDF Author: Antonio Diego
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 112

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Supports of Convolutions

Supports of Convolutions PDF Author: Antonio Diego
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 112

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Book Description


The Fundamental Principle for Systems of Convolution Equations

The Fundamental Principle for Systems of Convolution Equations PDF Author: Daniele Carlo Struppa
Publisher: American Mathematical Soc.
ISBN: 082182273X
Category : Convolutions
Languages : en
Pages : 175

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Book Description
The fundamental principle of L. Ehrenpreis states that under suitable hypotheses, the solutions of a homogeneous constant coefficients PDE can be represented as finite sums of absolutely convergent integrals over certain varieties in C[superscript italic]n. In the present paper the author extends these results to the case of homogeneous [italic]N x [script]m systems of convolution equations. In the first part of the paper, he discusses and extends an interpolation formula developed by Berenstein and Taylor, and uses the generalized Koszul complex to solve the algebraic problems which arise when considering systems in more than one unknown: the main result is a fundamental principle for general systems of convolution equations, in spaces [italic]X as described above. The second part of the paper is devoted to the generalization of this (and a related) result to more general classes of spaces, e.g. to the LAU-spaces of Ehrenpreis.

Fast Fourier Transform and Convolution Algorithms

Fast Fourier Transform and Convolution Algorithms PDF Author: H.J. Nussbaumer
Publisher: Springer Science & Business Media
ISBN: 3662005514
Category : Mathematics
Languages : en
Pages : 260

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Book Description
This book presents in a unified way the various fast algorithms that are used for the implementation of digital filters and the evaluation of discrete Fourier transforms. The book consists of eight chapters. The first two chapters are devoted to background information and to introductory material on number theory and polynomial algebra. This section is limited to the basic concepts as they apply to other parts of the book. Thus, we have restricted our discussion of number theory to congruences, primitive roots, quadratic residues, and to the properties of Mersenne and Fermat numbers. The section on polynomial algebra deals primarily with the divisibility and congruence properties of polynomials and with algebraic computational complexity. The rest of the book is focused directly on fast digital filtering and discrete Fourier transform algorithms. We have attempted to present these techniques in a unified way by using polynomial algebra as extensively as possible. This objective has led us to reformulate many of the algorithms which are discussed in the book. It has been our experience that such a presentation serves to clarify the relationship between the algorithms and often provides clues to improved computation techniques. Chapter 3 reviews the fast digital filtering algorithms, with emphasis on algebraic methods and on the evaluation of one-dimensional circular convolutions. Chapters 4 and 5 present the fast Fourier transform and the Winograd Fourier transform algorithm.

Computer Vision -- ECCV 2014

Computer Vision -- ECCV 2014 PDF Author: David Fleet
Publisher: Springer
ISBN: 3319105930
Category : Computers
Languages : en
Pages : 871

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Book Description
The seven-volume set comprising LNCS volumes 8689-8695 constitutes the refereed proceedings of the 13th European Conference on Computer Vision, ECCV 2014, held in Zurich, Switzerland, in September 2014. The 363 revised papers presented were carefully reviewed and selected from 1444 submissions. The papers are organized in topical sections on tracking and activity recognition; recognition; learning and inference; structure from motion and feature matching; computational photography and low-level vision; vision; segmentation and saliency; context and 3D scenes; motion and 3D scene analysis; and poster sessions.

Convolution-like Structures, Differential Operators and Diffusion Processes

Convolution-like Structures, Differential Operators and Diffusion Processes PDF Author: Rúben Sousa
Publisher: Springer Nature
ISBN: 303105296X
Category : Mathematics
Languages : en
Pages : 269

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Book Description
T​his book provides an introduction to recent developments in the theory of generalized harmonic analysis and its applications. It is well known that convolutions, differential operators and diffusion processes are interconnected: the ordinary convolution commutes with the Laplacian, and the law of Brownian motion has a convolution semigroup property with respect to the ordinary convolution. Seeking to generalize this useful connection, and also motivated by its probabilistic applications, the book focuses on the following question: given a diffusion process Xt on a metric space E, can we construct a convolution-like operator * on the space of probability measures on E with respect to which the law of Xt has the *-convolution semigroup property? A detailed analysis highlights the connection between the construction of convolution-like structures and disciplines such as stochastic processes, ordinary and partial differential equations, spectral theory, special functions and integral transforms. The book will be valuable for graduate students and researchers interested in the intersections between harmonic analysis, probability theory and differential equations.

Analytically Uniform Spaces and Their Applications to Convolution Equations

Analytically Uniform Spaces and Their Applications to Convolution Equations PDF Author: C. A. Berenstein
Publisher: Springer
ISBN: 354037163X
Category : Mathematics
Languages : en
Pages : 137

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Theory and Applications of Convolution Integral Equations

Theory and Applications of Convolution Integral Equations PDF Author: Hari M. Srivastava
Publisher: Springer Science & Business Media
ISBN: 9401580928
Category : Mathematics
Languages : en
Pages : 259

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Book Description
This volume presents a state-of-the-art account of the theory and applications of integral equations of convolution type, and of certain classes of integro-differential and non-linear integral equations. An extensive and well-motivated discussion of some open questions and of various important directions for further research is also presented. The book has been written so as to be self-contained, and includes a list of symbols with their definitions. For users of convolution integral equations, the volume contains numerous, well-classified inversion tables which correspond to the various convolutions and intervals of integration. It also has an extensive, up-to-date bibliography. The convolution integral equations which are considered arise naturally from a large variety of physical situations and it is felt that the types of solutions discussed will be usefull in many diverse disciplines of applied mathematics and mathematical physical. For researchers and graduate students in the mathematical and physical sciences whose work involves the solution of integral equations.

Multiplicative Complexity, Convolution, and the DFT

Multiplicative Complexity, Convolution, and the DFT PDF Author: Michael T. Heideman
Publisher: Springer Science & Business Media
ISBN: 1461239125
Category : Technology & Engineering
Languages : en
Pages : 162

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Book Description
This book is intended to be a comprehensive reference to multiplicative com plexity theory as applied to digital signal processing computations. Although a few algorithms are included to illustrate the theory, I concentrated more on the develop ment of the theory itself. Howie Johnson's infectious enthusiasm for designing efficient DfT algorithms got me interested in this subject. I am grateful to Prof. Sid Burrus for encouraging and supporting me in this effort. I would also like to thank Henrik Sorensen and Doug Jones for many stimulating discussions. lowe a great debt to Shmuel Winograd, who, almost singlehandedly, provided most of the key theoretical results that led to this present work. His monograph, Arithmetic Complexity o/Computations, introduced me to the mechanism behind the proofs of theorems in multiplicative complexity. enabling me to return to his earlier papers and appreciate the elegance of his methods for deriving the theory. The second key work that influenced me was the paper by Louis Auslander and Winograd on multiplicative complexity of semilinear systems defined by polynomials. After reading this paper, it was clear to me that this theory could be applied to many impor tant computational problems. These influences can be easily discerned in the present work.

The Analysis of Linear Partial Differential Operators II

The Analysis of Linear Partial Differential Operators II PDF Author: Lars Hörmander
Publisher: Springer
ISBN: 3540269649
Category : Mathematics
Languages : en
Pages : 404

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Book Description
Author received the 1962 Fields Medal Author received the 1988 Wolf Prize (honoring achievemnets of a lifetime) Author is leading expert in partial differential equations

Official Gazette of the United States Patent Office

Official Gazette of the United States Patent Office PDF Author: United States. Patent Office
Publisher:
ISBN:
Category : Patents
Languages : en
Pages : 2494

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Book Description