In modern analysis, the subject matter of functional analysis includes the study of abstract spaces, operators and transformations of these spaces, which provides a general framework for finding solutions of various problems in applied mathematics and physics. These abstract spaces include the sequence spaces as important special cases and this book is the result of many research papers which represent an original contribution to the theory of sequence spaces and infinite matrices with their matrix transformations. So, the present book can help in improving the reader's research abilities in...