图书简介
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.Key Features: oThe framework of convergence theory is easier, more powerful and far-reaching than that of general topology, thanks to an appropriate level of abstraction, enabling us to see the things with inhanced clarityoConvergence theory is for topology, what complex numbers are for real numbersoSeveral themes of convergence theory have been developed by the author and his collaboratorsoThus this book would offer the state of the art of the field
Introduction; Preliminaries; From Convergence of Sequences to the Concept of Filter; Convergence of Filters; Continuity; Families of Sets; Sequentially Founded Convergences; Pretopologies; Topologies; Functional Study of Topologies; Functional Partitions and Metrization; Adherences and Covers; Compact Topologies; Connected and Disconnected Topologies; Extensions and Compactifications; Non-Pretopological Convergences; Structural Aspects; Fundamental Classes; Diagonality and Regularity; Compactness; Mixed Properties; Implementations and Refinements; Completeness; Spaces of Maps; Duality Theory; Modified Duality; Outline of Principles; Bibliography; Nomenclature; Index;
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