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A characterization of pie limits

Published online by Cambridge University Press:  24 October 2008

John Power
Affiliation:
Laboratory for the Foundations of Computer Science, University of Edinburgh, Edinburgh EH9 3JZ, Scotland
Edmund Robinson
Affiliation:
School of Cognitive and Computing Sciences, University of Sussex, Falmer, Brighton BN1 6AA

Extract

It is well-known that limits in 2-categories are more complex than limits in ordinary categories. Most readers will at least be familiar with terms such as ‘lax limit’ and ‘pseudo-limit’. In the more modern treatments, these become special cases of a more general class of ‘weighted’ or ‘indexed’ limits (see Kelly [7] and Section 1 of this paper).

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1991

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References

REFERENCES

[1]Albert, M. H. and Kelly, G. M.. The closure of a class of colimits. J. Pure Appl. Alg. 51 (1988), 117.CrossRefGoogle Scholar
[2]Bird, G. J.. Limits in 2-categories of locally-presentable categories. PhD thesis, University of Sydney (1984).Google Scholar
[3]Bird, C. J., Kelly, G. M., Power, A. J. and Street, R.. Flexible limits for 2-categories. J. Pure Appl. Alg. 61(1989), 127.Google Scholar
[4]Blackwell, R.. Kelly, G. M. and Power, A. J.. Two-dimensional monad theory. J. Pure Appl. Alg. 59 (1989), 141.CrossRefGoogle Scholar
[5]Kelly, G. M.. Basic Concepts of Enriched Category Theory. London Math. Soc. Lecture Notes (Cambridge University Press, 1982).Google Scholar
[6]Kelly, G. M.. Structures defined by finite limits in the enriched context I. Cahiers Topologie Géom. Différentielle Catégoriques 23 (1982), 342.Google Scholar
[7]Kelly, G. M.. Elementary observations on 2-categorical limits. Bull. Austral. Math. Soc. (2) 39 (1989), 301317.CrossRefGoogle Scholar
[8]Street, R.. Limits indexed by category-valued 2-functors. J. Pure Appl. Alg. 8 (1976), 149181.CrossRefGoogle Scholar