W V Petryshyn (9 results)

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condition: New. Print on Demand. This book tackles a central issue in mathematics: studying operators, entities that change the input they receive in a systematic way, and how to solve equations involving them. The author presents a new method, the generalized overrelaxation method, which is applicable to a wider range of operator equations than previously possible. This method is derived from existing convergence theorems, and the book provides a necessary and sufficient condition for its effective use. The author also provides illustrative examples and shows that the method can be applied to Fredholm integral equations and matrix equations. The insights presented in this book significantly expand the scope of operator equations that can be solved effectively. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…

Paperback. Condition: New. Print on Demand. This book explores the eigenproblem (Tu-\Su=0) from the viewpoint of linear operators T and S in a Hilbert space. The author extends the existing body of research on self-adjoint, bounded, and unbounded differential and abstract operators to the larger class of unbounded and non-symmetric operators, offering new insights into the theory of the eigenproblem. Properties of K-positive definite and K-real operators are defined and derived, and these are then used to investigate the problem of existence of eigenvalues and eigenvectors under various conditions on T and S. The text also explores the generalized method of moments for the approximate calculation of eigenvalues and eigenvectors, and presents a fairly general iterative method, applicable to the approximate solution of the eigenproblem with unbounded and non-symmetric operators, that does not require the preliminary reduction of the problem to equivalent problems with bounded operators. This book will be of interest to researchers in applied mathematics, mathematical physics, and the related natural sciences and engineering disciplines where the eigenproblem plays a fundamental role. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…

Condition: New. Brand New! Fast Delivery This is an International Edition and ship within 24-48 hours. Deliver by FedEx and Dhl, & Aramex, UPS, & USPS and we do accept APO and PO BOX Addresses. Order can be delivered worldwide within 6-10 days and we do have flat rate for up to 2LB. Extra shipping charges will be requested if the Book weight is more than 5 LB. This Item May be shipped from India, United states & United Kingdom. Depending on your location and availability.…