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Weak Fraisse categories

Authors :
Kubiś, Wieslaw
Publication Year :
2017

Abstract

We develop the theory of weak Fraisse categories, where the crucial concept is the weak amalgamation property, discovered relatively recently in model theory. We show that, in a suitable framework, every weak Fraisse category has its unique limit, a special object in a bigger category, characterized by certain variant of injectivity. This significantly extends the present theory of Fraisse limits.<br />Comment: Several examples and comments added; new subsection 6.2 (38 pages)

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1712.03300
Document Type :
Working Paper