This book presents, in a clear and structured way, the set function /mathcal{T} and how it evolved since its inception by Professor F. Burton Jones in the 1940s. It starts with a very solid introductory chapter, with all the prerequisite material for navigating through the rest of the book. It then gradually advances towards the main properties, Decomposition theorems, /mathcal{T}-closed sets, continuity and images, to modern applications.
The set function /mathcal{T} has been used by many mathematicians as a tool to prove results about the semigroup structure of the continua, and about the existence of a metric continuum that cannot be mapped onto its cone or to characterize spheres. Nowadays, it has been used by topologists worldwide to investigate open problems in continuum theory.
This book can be of interest to both advanced undergraduate and graduate students, and to experienced researchers as well. Its well-defined structure make this book suitable not only for self-study but also as support material to seminars on the subject. Its many open problems can potentially encourage mathematicians to contribute with further advancements in the field.
Table of Content
Preliminaries.- The Set Function T.- Decomposition Theorems.- T-Closed Sets.- Continuity of T.- Images of T.- Applications.- Questions.- References.- Index.
About the author
Sergio Macías is a Professor at the Institute of Mathematics of the National Autonomous University of Mexico (UNAM). He got a Master’s degree from the same university, and a Ph D from Tulane University, New Orleans, USA. His research interests lie on topology with works on continuum theory and hyperspaces of continua. Dr. Macías also authored the book “Topics on Continua” (2018, ISBN 978-3-319-90901-1), whose second edition was published by Springer.
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