Complexity of Proofs and Their Transformations in Axiomatic Theories

Complexity of Proofs and Their Transformations in Axiomatic Theories
Author: V. P. Orevkov
Publisher: American Mathematical Soc.
Total Pages: 168
Release:
Genre: Mathematics
ISBN: 9780821897492

This book develops the tool of logical deduction schemata by using it to establish upper and lower bounds on the complexity of proofs and their transformations in axiomatized theories.

Complexity of Proofs and Their Transformations in Axiomatic Theories

Complexity of Proofs and Their Transformations in Axiomatic Theories
Author: V. P. Orevkov
Publisher:
Total Pages: 162
Release: 1993
Genre: Proof theory
ISBN: 9781470445362

The aim of this work is to develop the tool of logical deduction schemata and use it to establish upper and lower bounds on the complexity of proofs and their transformations in axiomatized theories. The main results are establishment of upper bounds on the elongation of deductions in cut eliminations; a proof that the length of a direct deduction of an existence theorem in the predicate calculus cannot be bounded above by an elementary function of the length of an indirect deduction of the same theorem; a complexity version of the existence property of the constructive predicate calculus; and.

Introduction to Complex Analysis

Introduction to Complex Analysis
Author: Junjiro Noguchi
Publisher: American Mathematical Soc.
Total Pages: 268
Release: 2008-04-09
Genre: Mathematics
ISBN: 9780821889602

This book describes a classical introductory part of complex analysis for university students in the sciences and engineering and could serve as a text or reference book. It places emphasis on rigorous proofs, presenting the subject as a fundamental mathematical theory. The volume begins with a problem dealing with curves related to Cauchy's integral theorem. To deal with it rigorously, the author gives detailed descriptions of the homotopy of plane curves. Since the residue theorem is important in both pure and applied mathematics, the author gives a fairly detailed explanation of how to apply it to numerical calculations; this should be sufficient for those who are studying complex analysis as a tool.

Modular forms and Hecke operators

Modular forms and Hecke operators
Author: A. N. Andrianov V. G. Zhuravlev
Publisher: American Mathematical Soc.
Total Pages: 350
Release: 1995-08-28
Genre: Mathematics
ISBN: 9780821897621

The concept of Hecke operators was so simple and natural that, soon after Hecke's work, scholars made the attempt to develop a Hecke theory for modular forms, such as Siegel modular forms. As this theory developed, the Hecke operators on spaces of modular forms in several variables were found to have arithmetic meaning. Specifically, the theory provided a framework for discovering certain multiplicative properties of the number of integer representations of quadratic forms by quadratic forms. Now that the theory has matured, the time is right for this detailed and systematic exposition of its fundamental methods and results. Features: The book starts with the basics and ends with the latest results, explaining the current status of the theory of Hecke operators on spaces of holomorphic modular forms of integer and half-integer weight congruence-subgroups of integral symplectic groups. Hecke operators are considered principally as an instrument for studying the multiplicative properties of the Fourier coefficients of modular forms. It is the authors' intent that Modular Forms and Hecke Operators help attract young researchers to this beautiful and mysterious realm of number theory.

Modular Forms and Hecke Operators

Modular Forms and Hecke Operators
Author: A. N. Andrianov
Publisher: American Mathematical Soc.
Total Pages: 346
Release: 2016-01-29
Genre:
ISBN: 1470418681

he concept of Hecke operators was so simple and natural that, soon after Hecke's work, scholars made the attempt to develop a Hecke theory for modular forms, such as Siegel modular forms. As this theory developed, the Hecke operators on spaces of modular forms in several variables were found to have arithmetic meaning. Specifically, the theory provided a framework for discovering certain multiplicative properties of the number of integer representations of quadratic forms by quadratic forms. Now that the theory has matured, the time is right for this detailed and systematic exposition of its fundamental methods and results. Features: The book starts with the basics and ends with the latest results, explaining the current status of the theory of Hecke operators on spaces of holomorphic modular forms of integer and half-integer weight congruence-subgroups of integral symplectic groups.Hecke operators are considered principally as an instrument for studying the multiplicative properties of the Fourier coefficients of modular forms. It is the authors' intent that Modular Forms and Hecke Operators help attract young researchers to this beautiful and mysterious realm of number theory.

Local Properties of Distributions of Stochastic Functionals

Local Properties of Distributions of Stochastic Functionals
Author: Yu. A. Davydov, M. A. Lifshits, andN. V. Smorodina
Publisher: American Mathematical Soc.
Total Pages: 208
Release: 1998-02-10
Genre: Mathematics
ISBN: 9780821897836

This book investigates the distributions of functionals defined on the sample paths of stochastic processes. It contains systematic exposition and applications of three general research methods developed by the authors. (i) The method of stratifications is used to study the problem of absolute continuity of distribution for different classes of functionals under very mild smoothness assumptions. It can be used also for evaluation of the distribution density of the functional. (ii) The method of differential operators is based on the abstract formalism of differential calculus and proves to be a powerful tool for the investigation of the smoothness properties of the distributions. (iii) The superstructure method, which is a later modification of the method of stratifications, is used to derive strong limit theorems (in the variation metric) for the distributions of stochastic functionals under weak convergence of the processes. Various application examples concern the functionals of Gaussian, Poisson and diffusion processes as well as partial sum processes from the Donsker-Prokhorov scheme. The research methods and basic results in this book are presented here in monograph form for the first time. The text would be suitable for a graduate course in the theory of stochastic processes and related topics.

Ordinary Differential Equations with Constant Coefficient

Ordinary Differential Equations with Constant Coefficient
Author: Serge_ Konstantinovich Godunov
Publisher: American Mathematical Soc.
Total Pages: 298
Release: 1997-08-19
Genre: Mathematics
ISBN: 9780821897799

This book presents the theory of ordinary differential equations with constant coefficients. The exposition is based on ideas developing the Gelfand-Shilov theorem on the polynomial representation of a matrix exponential. Boundary value problems for ordinary equations, Green matrices, Green functions, the Lopatinskii condition, and Lyapunov stability are considered. This volume can be used for practical study of ordinary differential equations using computers. In particular, algorithms and computational procedures, including the orthogonal sweep method, are described. The book also deals with stationary optimal control systems described by systems of ordinary differential equations with constant coefficients. The notions of controllability, observability, and stabilizability are analyzed, and some questions on the matrix Lure-Riccati equations are studied.

An Introduction to Algebraic Geometry

An Introduction to Algebraic Geometry
Author: Kenji Ueno
Publisher: American Mathematical Soc.
Total Pages: 266
Release: 1997
Genre: Mathematics
ISBN: 0821811444

This introduction to algebraic geometry allows readers to grasp the fundamentals of the subject with only linear algebra and calculus as prerequisites. After a brief history of the subject, the book introduces projective spaces and projective varieties, and explains plane curves and resolution of their singularities. The volume further develops the geometry of algebraic curves and treats congruence zeta functions of algebraic curves over a finite field. It concludes with a complex analytical discussion of algebraic curves. The author emphasizes computation of concrete examples rather than proofs, and these examples are discussed from various viewpoints. This approach allows readers to develop a deeper understanding of the theorems.

Nelinejnye Nelokal'nye UravneniĆ¢ V Teorii Voln

Nelinejnye Nelokal'nye UravneniĆ¢ V Teorii Voln
Author: Pavel Ivanovich Naumkin
Publisher: American Mathematical Soc.
Total Pages: 312
Release:
Genre: Science
ISBN: 9780821887691

This book is the first to concentrate on the theory of nonlinear nonlocal equations. The authors solve a number of problems concerning the asymptotic behavior of solutions of nonlinear evolution equations, the blow-up of solutions, and the global in time existence of solutions. In addition, a new classification of nonlinear nonlocal equations is introduced. A large class of these equations is treated by a single method, the main features of which are apriori estimates in different integral norms and use of the Fourier transform. This book will interest specialists in partial differential equations, as well as physicists and engineers.