Constructions of Solid Hulls |
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| Authors: | J Adámek L Sousa |
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| Institution: | (1) Technical University of Braunschweig, Postfach 3329, 38023 Braunschweig, Germany;(2) Escola Superior de Tecnologia, Campus Politécnico, Repeses, 3500 Viseu, Portugal |
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| Abstract: | For each concrete category (K,U) an extension LIM(K,U) is constructed and under certain 'smallness conditions' it is proved that LIM(K,U) is a solid hull of (K,U), i.e., the least finally dense solid extension of (K,U). A full subcategory of Top
2 is presented which does not have a solid hull. |
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| Keywords: | concrete category MacNeille completion solid hull limit closure |
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