Lax pullback complements and pullbacks of spans

Name: Lax pullback complements and pullbacks of spans
Keywords: partial product, adhesiev category, Special categories, category of spans, lax pullback complement

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2018 English Publisher:Mount Allison UniversityJournal:Theory and Applications of Categories, volume 33, pages 445-475 (eissn: 1201-561X,

Authors: Hosseini, Seyed Naser; Tholen, Walter; Yeganeh, Leila;

doi: 10.70930/tac/viq588uz

Lax pullback complements and pullbacks of spans

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Abstract

Pullback complements were introduced by the second author [Partial products and pullback complements, Seminarberichte (Fernuniversität Hagen) 18, 199--216 (1983); see also \textit{R. Dyckhoff} and \textit{W. Tholen}, J. Pure Appl. Algebra 49, 103--116 (1987; Zbl 0659.18003)] and, since then, they were used, especially in theoretical computer science. This paper applies them to construct pullbacks in the category of spans.

Keywords

partial product, adhesiev category, Special categories, category of spans, lax pullback complement

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