Titlebook: General Topology and Homotopy Theory; I. M. James Textbook 1984 Springer-Verlag New York Inc. 1984 Homotopy.cofibration.fibrations.group t

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https://doi.org/10.1007/978-3-319-53910-2basic category of topological spaces and continuous functions but also with various other categories associated with it. Consequently we begin with a preliminary chapter in which some of the common features of these categories are discussed in general terms. This avoids a certain amount of repetitio

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David Zhang,Wangmeng Zuo,Peng Wangto some extent. At the very least it saves a certain amount of repetition. In fact all the categories we shall be dealing with are of the type known as concrete, i.e. they consist of sets with additional structure and functions which respect that structure. However there is little to be gained by re

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M. G. Neigauz,G. V. Shkadinskayasociated with the category T of spaces and maps. We begin by discussing the category of spaces under a given space, then turn to the category of spaces over a given space, and finally consider the category of spaces over and under a given space.

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Privacy in Online Social NetworksIn what we have done so far the Hausdorff and regularity axioms have played an important part. We now need to introduce two more separation axioms and to discuss various concepts which are associated with them.

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