A Royal Road to Topology: Convergence of Filters

344.26 SGD
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309.84
English

Product Description

Convergence theory is intuitive, that it is highly operational, results from its universality (which will become evident from the lecture of this book). In plain words, the class of convergences is closed under several natural, essential operations, under which the class of topologies is not! Convergence theory exponentially completes topology in an analogous way as the field of complex numbers algebraically completes the field of real numbers. The title of this book alludes the mentioned advantages of the present approach, which I believe to be more gratifying than many traditional ones: you travel more comfortably and see more. Principal classical topics of typical topology courses are included. In most cases, they appear as simple consequences of the developed theory of convergence.

Topological spaces are a special case of convergence spaces. This textbook introduces topology within a broader context of convergence theory. The title alludes to advantages of the present approach, which is more gratifying than many traditional ones: you travel more comfortably through mathematical landscapes and you see more.The book is addressed both to those who wish to learn topology and to those who, being already knowledgeable about topology, are curious to review it from a different perspective, which goes well beyond the traditional knowledge.Usual topics of classic courses of set-theoretic topology are treated at an early stage of the book — from a viewpoint of convergence of filters, but in a rather elementary way. Later on, most of these facts reappear as simple consequences of more advanced aspects of convergence theory.The mentioned virtues of the approach stem from the fact that the class of convergences is closed under several natural, essential operations, under which the class of topologies is not! Accordingly, convergence theory complements topology like the field of complex numbers algebraically completes the field of real numbers.Convergence theory is intuitive and operational because of appropriate level of its abstraction, general enough to grasp the underlying laws, but not too much in order not to lose intuitive appeal.

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