Titlebook: Categorical Closure Operators; Gabriele Castellini Textbook 2003 Springer Science+Business Media New York 2003 Abelian group.Boundary valu

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Textbook 2003 which illustrate the general concepts in several concrete situations. It is aimed mainly at researchers and graduate students in the area of cate­ gorical topology, and to those interested in categorical methods applied to the most common concrete categories. Categorical Closure Operators is self-c

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s about them can­ not be found anywhere else, since all the results about these factorizations are usually treated as the duals of the theory of factorization structures for sources. Here, those hard-to-find de978-1-4612-6504-7978-0-8176-8234-7

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Textbook 2003se factorizations not only are essential for the theory developed in this book, but details about them can­ not be found anywhere else, since all the results about these factorizations are usually treated as the duals of the theory of factorization structures for sources. Here, those hard-to-find de

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Factorization Structures For Sinksorization structures have always played a fundamental role in the theory of categories and, as it will become clear later on, they also play an essential role in the theory developed in this book. As a matter of fact, the basic working environment from Chapter 4 on will be a category . with a factor

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Closure Operators: Definition and Examplesr), together with some preliminary results and examples. The first attempts at defining a special case of this new notion of closure operator started in the category . of topological spaces ([G.] and later [DG.]) and subsequently in a concrete category . → . ([C.]). However, in what follows we will

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Regular Closure Operatorserators. As a matter of fact, regular closure operators were invented before the current notion of closure operator was formulated. In order to deal with this important concept, we need to make a further assumption.

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