×

Completely distributive enriched categories are not always continuous. (English) Zbl 1444.18007

Summary: In contrast to the fact that every completely distributive lattice is necessarily continuous in the sense of Scott, it is shown that complete distributivity of a category enriched over the closed category obtained by endowing the unit interval with a continuous t-norm does not imply its continuity in general. Necessary and sufficient conditions for the implication are presented.

MSC:

18B35 Preorders, orders, domains and lattices (viewed as categories)
18D20 Enriched categories (over closed or monoidal categories)
06D10 Complete distributivity
06F07 Quantales

References:

[1] Proposition. Let T be a saturated class of weights on Q-Cat. Then, in the category T -Alg, every retract of a T -continuous T -algebra is T -continuous. References
[2] J. Adámek, F. W. Lawvere, J. Rosický, Continuous categories revisited, Theory and Applications of Categories 11: 252-282, 2003. · Zbl 1018.18003
[3] M. H. Albert, G. M. Kelly, The closure of a class of colimits, Journal Pure and Applied Algebra 51: 1-17, 1998. · Zbl 0656.18004
[4] M. Bonsangue, F. van Breugel, J. Rutten, Generalized metric spaces: Completion, topology, and powerdomains via the Yoneda embedding, Theoretical Computer Sci-ence 193: 1-51, 1998. · Zbl 0997.54042
[5] F. Borceux, Handbook of Categorical Algebra, Volume 2, Cambridge University Press, 1994. · Zbl 0803.18001
[6] B. Fawcett, R. J. Wood, Constructive complete distributivity, Mathematical Proceed-ings of the Cambridge Philosophical Society 107: 81-89, 1990. · Zbl 0694.06008
[7] R. C. Flagg, P. Sünderhauf, K. R. Wagner, A logical approach to quantitative domain theory, Topology Atlas, Preprint 23, 1996.
[8] G. Gierz, K. H. Hofmann, K. Keimel, J. D. Lawson, M. Mislove, D. S. Scott, Con-tinuous Lattices and Domains, volume 93 of Encyclopedia of Mathematics and its Applications, Cambridge University Press, Cambridge, 2003. · Zbl 1088.06001
[9] D. Hofmann, Duality for distributive spaces, Theory and Applications of Categories 28: 66-122, 2013. · Zbl 1288.18002
[10] D. Hofmann, G. J. Seal, W. Tholen (editors), Monoidal Topology: A Categorical Ap-proach to Order, Metric, and Topology, volume 153 of Encyclopedia of Mathematics and its Applications, Cambridge University Press, Cambridge, 2014. · Zbl 1297.18001
[11] D. Hofmann, P. Waszkiewicz, Approximation in quantale-enriched categories, Topol-ogy and its Applications 158: 963-977, 2011. · Zbl 1233.06004
[12] D. Hofmann, P. Waszkiewicz, A duality of quantale-enriched categories, Journal of Pure and Applied Algebra 216: 1866-1878, 2012. · Zbl 1280.18007
[13] P. Johnstone, Stone Spaces, Cambridge University Press, 1982. · Zbl 0499.54001
[14] P. Johnstone, A. Joyal, Continuous categories and exponentiable toposes, Journal of Pure and Applied Algebra 25: 255-296, 1982. · Zbl 0487.18003
[15] G. M. Kelly, V. Schmitt, Notes on enriched categories with colimits of some class, Theory and Applications of Categories 14: 399-423, 2005. · Zbl 1082.18004
[16] E. P. Klement, R. Mesiar, E. Pap, Triangular Norms, volume 8 of Trends in Logic, Springer, Dordrecht, 2000. · Zbl 0972.03002
[17] A. Kock, Monads for which structures are adjoint to units, Journal of Pure and Applied Algebra 104: 41-59, 1995. · Zbl 0849.18008
[18] M. Kostanek, P. Waszkiewicz, The formal ball model for L-categories, Mathematical Structures in Computer Science 21: 41-64, 2011. · Zbl 1215.18005
[19] H. Lai, L. Shen, Regularity vs. constructive complete (co)distributivity, Theory and Applications of Categories 33: 492-522, 2018. · Zbl 1396.18007
[20] H. Lai, L. Shen, W. Tholen, Lax distributive laws for topology II, Theory and Ap-plications of Categories 32: 736-768, 2017. · Zbl 1374.18011
[21] H. Lai, D. Zhang, Complete and directed complete Ω-categories, Theoretical Com-puter Science 388: 1-25, 2007. · Zbl 1131.18006
[22] F. W. Lawvere, Metric spaces, generalized logic and closed categories, Rendiconti del Seminario Matématico e Fisico di Milano XLIII: 135-166, 1973. · Zbl 0335.18006
[23] R. B. Lucyshyn-Wright, Totally distributive toposes, Journal of Pure and Applied Algebra 216: 2425-2431, 2012. · Zbl 1263.18001
[24] F. Marmolejo, R. Rosebrugh, R. Wood, Completely and totally distributive cate-gories, Journal of Pure and Applied Algebra 216: 1775-1790, 2012. · Zbl 1278.18001
[25] P. S. Mostert, A. L. Shields, On the structure of semigroups on a compact manifold with boundary, Annals of Mathematics, 65: 117-143, 1957. · Zbl 0096.01203
[26] Q. Pu, D. Zhang, Categories enriched over a quantaloid: Algebras, Theory and Ap-plications of Categories 30: 751-774, 2015. · Zbl 1338.18036
[27] K. I. Rosenthal, Quantales and their Applications, volume 234 of Pitman research notes in mathematics series, Longman, Harlow, 1990. · Zbl 0703.06007
[28] I. Stubbe, Categorical structures enriched in a quantaloid: categories, distributors and functors, Theory and Applications of Categories 14: 1-45, 2005. · Zbl 1079.18005
[29] I. Stubbe, Categorical structures enriched in a quantaloid: tensored and cotensored categories, Theory and Applications of Categories 16: 283-306, 2006. · Zbl 1119.18005
[30] I. Stubbe, Towards “dynamic domains”: Totally continuous cocomplete Q-categories, Theoretical Computer Science 373: 142-160, 2007. · Zbl 1111.68073
[31] I. Stubbe, “Hausdorff distance” via conical cocompletion, Cahiers de Topologie et Géométrie Différentielle Catégoriques 51: 51-76, 2010. · Zbl 1260.18009
[32] I. Stubbe, The double power monad is the composite power monad, Fuzzy Sets and Systems 313: 25-42, 2017. · Zbl 1390.18020
[33] K. R. Wagner, Solving Recursive Domain Equations with Enriched Categories, PhD thesis, Carnegie Mellon University, Pittsburgh, 1994.
[34] K. R. Wagner, Liminf convergence in Ω-categories, Theoretical Computer Science 184: 61-104, 1997. · Zbl 0935.18008
[35] R. J. Wood, Ordered sets via adjunctions, in: Categorical Foundations, volume 97 of Encyclopedia of Mathematics and its Applications, pp. 5-47, Cambridge University Press, Cambridge, 2004. · Zbl 1044.06001
[36] V. Zöberlein, Doctrines on 2-categories, Mathematische Zeitschrift 148: 267-279, 1976. Managing editor. Robert Rosebrugh, Mount Allison University: rrosebrugh@mta.ca T E Xnical editor. Michael Barr, McGill University: michael.barr@mcgill.ca · Zbl 0311.18005
[37] Assistant T E X editor. Gavin Seal, Ecole Polytechnique Fédérale de Lausanne: gavin seal@fastmail.fm Transmitting editors.
[38] Clemens Berger, Université de Nice-Sophia Antipolis: cberger@math.unice.fr Julie Bergner, University of Virginia: jeb2md (at) virginia.edu Richard Blute, Université d’ Ottawa: rblute@uottawa.ca
[39] Gabriella Böhm, Wigner Research Centre for Physics: bohm.gabriella (at) wigner.mta.hu Valeria de Paiva: Nuance Communications Inc: valeria.depaiva@gmail.com Richard Garner, Macquarie University: richard.garner@mq.edu.au Ezra Getzler, Northwestern University: getzler (at) northwestern(dot)edu
[40] Kathryn Hess, Ecole Polytechnique Fédérale de Lausanne: kathryn.hess@epfl.ch Dirk Hofmann, Universidade de Aveiro: dirk@ua.pt Pieter Hofstra, Université d’ Ottawa: phofstra (at) uottawa.ca Anders Kock, University of Aarhus: kock@math.au.dk Joachim Kock, Universitat Autònoma de Barcelona: kock (at) mat.uab.cat Stephen Lack, Macquarie University: steve.lack@mq.edu.au F. William Lawvere, State University of New York at Buffalo: wlawvere@buffalo.edu Tom Leinster, University of Edinburgh: Tom.Leinster@ed.ac.uk Matias Menni, Conicet and Universidad Nacional de La Plata, Argentina: matias.menni@gmail.com Ieke Moerdijk, Utrecht University: i.moerdijk@uu.nl Susan Niefield, Union College: niefiels@union.edu Robert Paré, Dalhousie University: pare@mathstat.dal.ca Kate Ponto, University of Kentucky: kate.ponto (at) uky.edu Jiri Rosicky, Masaryk University: rosicky@math.muni.cz Giuseppe Rosolini, Università di Genova: rosolini@disi.unige.it Alex Simpson, University of Ljubljana: Alex.Simpson@fmf.uni-lj.si James Stasheff, University of North Carolina: jds@math.upenn.edu Ross Street, Macquarie University: ross.street@mq.edu.au Tim Van der Linden, Université catholique de Louvain: tim.vanderlinden@uclouvain.be
This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching.