The Pullback Closure Operator and Generalisations of Perfectness

David Holgate ()
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David Holgate: University of Cape Town, Department of Mathematics and Applied Mathematics

A chapter in Categorical Topology, 1996, pp 107-120 from Springer

Abstract: Abstract A categorical closure operator induced via pullback by a pointed endofunctor is introduced. Various notions of a perfect morphism relative to a pointed endofunctor and the induced closure are then considered. The main result explores how these notions are interrelated, linking also with earlier notions of perfectness.

Keywords: pointed endofunctor; closure operator; perfect morphism; Primary: 18A20; Secondary: 18A32; 18B30; 54B30; 54C10 (search for similar items in EconPapers)
Date: 1996
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-94-009-0263-3_10

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DOI: 10.1007/978-94-009-0263-3_10

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