Initial morphisms and monomorphisms |
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Authors: | Dieter Pumplün |
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Institution: | (1) Fachbereich Mathematik, Fernuniversität, Postfach 940, D-5800 Hagen, Federal Republic of Germany |
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Abstract: | Initial cones are shown to be mono-cones for several important types of functors, namely those possessing a reducible generator or having a certain topological (1.7) resp. algebraic property (1.8). These results are useful for the computation of the universal initial completion of faithful, topologically algebraic functors, contain results of Börger-Tholen and Hoffmann for certain setbased functors as special cases and allow a complete characterization of the initial cones in quite a few categories. |
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Keywords: | Primary 18 A 20 18 A 22 18 B 30 Secondary 46 M 15 46 M 99 54 B 30 54 C 10 |
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