Not signed in (Sign In)

Start a new discussion

Not signed in

Want to take part in these discussions? Sign in if you have an account, or apply for one below

  • Sign in using OpenID

Site Tag Cloud

2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry bundles calculus categories category category-theory chern-weil-theory cohesion cohesive-homotopy-theory cohesive-homotopy-type-theory cohomology colimits combinatorics complex-geometry computable-mathematics computer-science constructive constructive-mathematics cosmology definitions deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry differential-topology digraphs duality elliptic-cohomology enriched fibration finite foundations functional-analysis functor galois-theory gauge-theory gebra geometric-quantization geometry graph graphs gravity grothendieck group-theory harmonic-analysis higher higher-algebra higher-category-theory higher-differential-geometry higher-geometry higher-lie-theory higher-topos-theory history homological homological-algebra homology homotopy homotopy-theory homotopy-type-theory index-theory infinity integration integration-theory k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure-theory modal-logic model model-category-theory monoidal monoidal-category-theory morphism motives motivic-cohomology multicategories newpage noncommutative noncommutative-geometry number-theory of operads operator operator-algebra order-theory pasting philosophy physics planar pro-object probability probability-theory quantization quantum quantum-field quantum-field-theory quantum-mechanics quantum-physics quantum-theory question representation representation-theory riemannian-geometry scheme schemes set set-theory sheaf simplicial space spin-geometry stable-homotopy-theory stack string-theory subobject superalgebra supergeometry svg symplectic-geometry synthetic-differential-geometry terminology theory topology topos topos-theory tqft type type-theory universal variational-calculus

Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.

Welcome to nForum
If you want to take part in these discussions either sign in now (if you have an account), apply for one now (if you don't).

nLab > Latest Changes: dagger category

Bottom of Page

1 to 10 of 10

  1.  
    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeJan 6th 2010
    • (edited Jan 6th 2010)

    I took the liberty of incorporating material from Andre Joyal's latest message to the CatTheory mailing list into the entry dagger-category:

    created sections

    • CommentRowNumber2.
    • CommentAuthorzskoda
    • CommentTimeJan 6th 2010

    Joyal really made a surprising, subtle and beautiful point. So far the most interesting remark in the whole dagger discussion, to my taste.

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeMar 22nd 2010

    Does anyone consider a bicategory of dagger-catgeories? Or dagger-functor categories? Hence a closed monoidal structure on dagger categories? Things like that?

    • CommentRowNumber4.
    • CommentAuthorMike Shulman
    • CommentTimeMar 22nd 2010

    I think the category of dagger-categories and dagger-functors is actually cartesian closed. Giving you in particular a "locally-dagger" 2-category of dagger categories.

    • CommentRowNumber5.
    • CommentAuthorUrs
    • CommentTimeMar 22nd 2010
    • (edited Mar 22nd 2010)

    What's the dagger structure on the internal hom?

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeMar 22nd 2010

    Oh, right, sorry, I get it.

    • CommentRowNumber7.
    • CommentAuthorUrs
    • CommentTimeMar 22nd 2010

    started The category fo dagger-categories

    but have to interrup now-- have to dash to get some dinner...

    • CommentRowNumber8.
    • CommentAuthorHarry Gindi
    • CommentTimeMar 22nd 2010
    • (edited Mar 22nd 2010)

    Yes, best typo of all time.

    Please do not fix it.

    The Category fo Dagger Categories, the place where all the cool cats like to go.

    • CommentRowNumber9.
    • CommentAuthorUrs
    • CommentTimeMar 22nd 2010
    • (edited Mar 22nd 2010)

    Yes, best typo of all time.

    Thanks, I am practicing typos a lot.

    anyway: dinner is over, here are more details: the category of dagger-categories

    • CommentRowNumber10.
    • CommentAuthorIan_Durham
    • CommentTimeMar 23rd 2010
    This comment is invalid XHTML+MathML+SVG; displaying source. <div> <blockquote><br/>The Category fo Dagger Categories, the place where all the cool cats like to go.<br/></blockquote><br/>Yo. </div>

1 to 10 of 10

  1.  
Add your comments
  • Please log in or leave your comment as a "guest post". If commenting as a "guest", please include your name in the message as a courtesy. Note: only certain categories allow guest posts.

    • To produce a hyperlink to an nLab entry, simply put double square brackets around its name, e.g. [[category]]. To use (La)TeX mathematics in your post, make sure Markdown+Itex is selected below and put your mathematics between dollar signs as usual. Only a subset of the usual TeX math commands are accepted: see here for a list.

  • (Help)
 
Back to Discussions Top of Page