This book develops integral identities, mostly involving multidimensional functions and infinite limits of integration, whose evaluations are intractable by common means. It exposes a methodology based on the multivariate power substitution and its variants, assisted by the software tool Mathematica. The approaches introduced comprise the generalized method of exhaustion, the multivariate power substitution and its variants, and the use of permutation symmetry to evaluate definite integrals, which are very important both in their own right, and as necessary intermediate steps towards more involved computation.
A key tenet is that such approaches work best when applied to integrals having certain characteristics as a starting point. Most integrals, if used as a starting point, will lead to no result at all, or will lead to a known result. However, there is a special class of integrals (i.e., innovative integrals) which, if used as a starting point for such approaches, willlead to new and useful results, and can also enable the reader to generate many other new results that are not in the book.
The reader will find a myriad of novel approaches for evaluating integrals, with a focus on tools such as Mathematica as a means of obtaining useful results, and also checking whether they are already known. Results presented involve the gamma function, the hypergeometric functions, the complementary error function, the exponential integral function, the Riemann zeta function, and others that will be introduced as they arise. The book concludes with selected engineering applications, e.g., involving wave propagation, antenna theory, non-Gaussian and weighted Gaussian distributions, and other areas.
The intended audience comprises junior and senior sciences majors planning to continue in the pure and applied sciences at the graduate level, graduate students in mathematics and the sciences, and junior and established researchers in mathematicalphysics, engineering, and mathematics. Indeed, the pedagogical inclination of the exposition will have students work out, understand, and efficiently use multidimensional integrals from first principles.
Inhoudsopgave
Preface.- Chapter. 1. The Generalized Method of Exhaustion.- Chapter. 2. The Multivariate Power Substitution and its Variants.- Chapter. 3. Additional Multivariate Substitution Variants.- Chapter. 4. Miscellaneous Integral Identities.- Chapter. 5. The Exponential Integral Function, the Sine Integral and Cosine Integrals.- Chapter. 6. The Riemann Zeta Function and the Hurwitz Zeta Function.- Chapter. 7. Engineering Applications.- Bibliography.- Index.
Over de auteur
Anthony A. Ruffa serves as the Director of Research at the Naval Undersea Warfare Center (NUWC), Newport, RI, USA. He is responsible for managing the development and execution of a portfolio of Office of Naval Research (ONR) funded projects that forms the foundation of NUWC’s science and technology (S&T) competency, and works with the Navy research community to identify emerging technologies and assess the maturity and risks of current technologies. Dr. Ruffa has published research papers in many diverse areas of mathematics and physics (including the original paper on the generalized method of exhaustion that forms the basis of this monograph), and holds 76 U.S. Patents.
Bourama Toni is a Full Professor of Mathematics and Chair of the Department of Mathematics at Howard University, Washington, DC, USA; and Founder and Editor of the Springer-published STEAM-H series, with truly an interdisciplinary profile. Dr. Toni’s research interests are primarily in Differential and Nonlinear Analysis and related topics to include Dynamical Systems, Non-Archimedean Analysis, Game Theory, Feedback Loops Analysis, and their applications to biosciences, behavioral sciences and naval engineering, with an excellent track-record of quality published research papers including contributed volumes with Springer.
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