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 categorical categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics complex-geometry computable-mathematics computer-science constructive cosmology definitions deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry digraphs duality elliptic-cohomology enriched fibration foundations functional-analysis functor gauge-theory gebra geometric-quantization geometry graph graphs gravity grothendieck group group-theory harmonic-analysis higher higher-algebra higher-category-theory higher-differential-geometry higher-geometry higher-lie-theory higher-topos-theory homological homological-algebra homotopy homotopy-theory homotopy-type-theory index-theory integration integration-theory k-theory kan lie-theory limit limits linear linear-algebra locale localization logic mathematics measure-theory modal modal-logic model model-category-theory monad monads monoidal monoidal-category-theory morphism motives motivic-cohomology newpage nlab nonassociative noncommutative noncommutative-geometry number-theory object of operads operator operator-algebra order-theory pages pasting philosophy physics 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 string string-theory subobject superalgebra supergeometry svg symplectic-geometry synthetic-differential-geometry terminology theory topology topos topos-theory 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).
    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeFeb 4th 2010
    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeFeb 4th 2010

    I added now to locally constant infinity-stack the version of the story of "covering oo-groupoids" in an arbiztrary oo-topos as I now think it should be.

    It is the part introduced with a query box asking for sanity-checks.

    • CommentRowNumber3.
    • CommentAuthorTobyBartels
    • CommentTimeFeb 4th 2010

    still need locally constant function

    That seemed easy enough to start, so I did.

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeFeb 4th 2010

    thanks. I added the remark about the hierarchy of locally constant n-stacks...

    • CommentRowNumber5.
    • CommentAuthorUrs
    • CommentTimeFeb 5th 2010

    added the Polesello-Waschkies reference with a detailed account of page and verse of their theorems and how they fit into the general abstract picture as the entry presents it now. See locally constant oo-stack - References

    • CommentRowNumber6.
    • CommentAuthorMike Shulman
    • CommentTimeFeb 8th 2010

    Since when are locally constant things always finite? I would say "locally finite" when that's the case.

    • CommentRowNumber7.
    • CommentAuthorDavidRoberts
    • CommentTimeFeb 8th 2010

    I have been wondering about the emphasis on finite fibres too. Generally speaking, such a restriction is only necessary in an algebro-geometric setting, and even then, I personally think that for (n-)groupoids such a thing might have to be relaxed.

    • CommentRowNumber8.
    • CommentAuthorUrs
    • CommentTimeFeb 8th 2010

    Yes, I had meant to remove this. I'll do so, but maybe not right now, as my machine's battery is dying...

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)