Authors: Feyzi Başar, Rifat Çolak

Summability Theory and its Applications

eBook: US $39 Special Offer (PDF + Printed Copy): US $258
Printed Copy: US $239
Library License: US $156
ISBN: 978-1-60805-420-6 (Print)
ISBN: 978-1-60805-252-3 (Online)
Year of Publication: 2012
DOI: 10.2174/97816080545231120101

Introduction

The theory of summability has many uses throughout analysis and applied mathematics. Engineers and physicists working with Fourier series or analytic continuation will also find the concepts of summability theory valuable to their research.

The concepts of summability have been extended to the sequences of fuzzy numbers and also to the theorems of ergodic theory. This ebook explains various aspects of summability and demonstrates applications in a coherent manner. The content can readily serve as a useful series of lecture notes on the subject.

This ebook comprises of 8 chapters starting from classical sequence spaces and covering matrix transformations and fuzzy numbers. An accompanying bibliography with extensive references makes this a valuable source of information for readers interested in summability theory as well as other branches of science.

Foreword

This book is actually timely and is intended for graduate and research students who have an interest in Sequence Spaces, Summability Methods and their Appli­cations. The author of the book, Professor Feyzi Ba§ar is one of the renowned researchers in this field whose conscientiousness is reflected in the organization the contents of the book.

Professor Ba§ar has successfully tried to capture the spirit of this emerging and fascinating discipline in his book and presented the width and depth of the topics intelligently. His survey starting from the very basic definitions highlights the progress and developments of the subject in a well organized manner in order to motivate the readers.

This book covers many interesting studies on sequence spaces, e.g. topological properties, matrix transformations, matrix domains of triangles, spectrum, core and fuzzy study. So it should attracts researchers from various fields.

Other two books on this subject are also worth mentioning here: One by A. Wilansky [Summability through Functional Analysis, North-Holland Mathematics Studies 85, Amsterdam-New York-Oxford, 1984] and the other by J. Boos [Classical and Modern Methods in Summability, Oxford University Press Inc., New York, 2000]. But Chapters 5 8 of this book make it different from the other two books on this topic which cover the most recent work on Sequence Spaces. The presentation by Professor Ba§ar is very simple and straightforward.

This book also provides the basic tools to the researchers using directly or indirectly the notion of sequences and series and their convergence problems using modern summability methods. Professor Ba§ar has given emphasis on the use of soft analysis which makes the subject matter easily comprehensible. This book is a Bible of Modern Summability Methods.

Professor M. Mursaleen
Aligarh Muslim University
India


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