Not signed in (Sign In)

A discussion forum about contributions to the nLab wiki and related areas of mathematics, physics, and philosophy.

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

2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry book bundles calculus categorical categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics complex complex-geometry computable-mathematics computer-science constructive cosmology deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry digraphs duality elliptic-cohomology enriched fibration foundation 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 history homological homological-algebra homotopy homotopy-theory homotopy-type-theory index-theory integration integration-theory k-theory lie 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 nlab noncommutative noncommutative-geometry number-theory 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 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.

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).

- Discussion Type
- discussion topicsifted (oo,1)-category
- Category Latest Changes
- Started by Urs
- Comments 2
- Last comment by Urs
- Last Active Jan 6th 2011

- Discussion Type
- discussion topicstrongly connected site
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Jan 5th 2011

- Discussion Type
- discussion topicstrongly/totally oo-connected (oo,1)-topos
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Jan 5th 2011

- Discussion Type
- discussion topicNew forum categories
- Category n-Forum
- Started by Andrew Stacey
- Comments 3
- Last comment by Andrew Stacey
- Last Active Jan 5th 2011

- Discussion Type
- discussion topicSkolem
- Category Latest Changes
- Started by zskoda
- Comments 6
- Last comment by zskoda
- Last Active Jan 4th 2011

- Discussion Type
- discussion topicfppf-site
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by zskoda
- Last Active Jan 4th 2011

- Discussion Type
- discussion topiclocal site
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Jan 4th 2011

- Discussion Type
- discussion topicconnected topos
- Category Latest Changes
- Started by Mike Shulman
- Comments 2
- Last comment by Urs
- Last Active Jan 3rd 2011

- Discussion Type
- discussion topicn-localic (oo,1)-topos
- Category Latest Changes
- Started by Urs
- Comments 2
- Last comment by Urs
- Last Active Jan 3rd 2011

- Discussion Type
- discussion topicchange of universe
- Category nLab General Discussions
- Started by Mike Shulman
- Comments 37
- Last comment by zskoda
- Last Active Jan 3rd 2011

- Discussion Type
- discussion topicfpqc-site
- Category Latest Changes
- Started by Urs
- Comments 6
- Last comment by zskoda
- Last Active Jan 3rd 2011

- Discussion Type
- discussion topic(oo,1)-Yoneda lemma
- Category Latest Changes
- Started by Urs
- Comments 13
- Last comment by Urs
- Last Active Jan 2nd 2011

- Discussion Type
- discussion topicstructured (infinity,1)-topos
- Category Latest Changes
- Started by Urs
- Comments 2
- Last comment by Urs
- Last Active Jan 2nd 2011

- Discussion Type
- discussion topichomotopy groups of a Lie groupoid
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Jan 2nd 2011

- Discussion Type
- discussion topicgeneralizations of topoi
- Category Mathematics, Physics & Philosophy
- Started by zskoda
- Comments 4
- Last comment by TobyBartels
- Last Active Dec 30th 2010

- Discussion Type
- discussion topicapplied mathematics
- Category Latest Changes
- Started by zskoda
- Comments 5
- Last comment by TobyBartels
- Last Active Dec 30th 2010

- Discussion Type
- discussion topiccohesive topos and cohesive site
- Category Latest Changes
- Started by Urs
- Comments 3
- Last comment by Urs
- Last Active Dec 30th 2010

- Discussion Type
- discussion topicprojective stack
- Category Latest Changes
- Started by Urs
- Comments 11
- Last comment by zskoda
- Last Active Dec 29th 2010

- Discussion Type
- discussion topicArtin stack
- Category Latest Changes
- Started by Urs
- Comments 10
- Last comment by zskoda
- Last Active Dec 29th 2010

- Discussion Type
- discussion topicsubobject in an (infinity,1)-category
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Dec 29th 2010

- Discussion Type
- discussion topicTopological quantum field theories from compact Lie groups
- Category Mathematics, Physics & Philosophy
- Started by domenico_fiorenza
- Comments 29
- Last comment by domenico_fiorenza
- Last Active Dec 27th 2010

- Discussion Type
- discussion topicIntroduction to [[logic]]
- Category Latest Changes
- Started by TobyBartels
- Comments 5
- Last comment by Tim_Porter
- Last Active Dec 24th 2010

- Discussion Type
- discussion topicschematic homotopy type
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Dec 23rd 2010

- Discussion Type
- discussion topiccanonical structure sheaves on objects in a big topos
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Dec 23rd 2010

- Discussion Type
- discussion topicquestion at semigroup
- Category Latest Changes
- Started by Urs
- Comments 6
- Last comment by TobyBartels
- Last Active Dec 23rd 2010

- Discussion Type
- discussion topicAdvice on writing M.O question.
- Category Mathematics, Physics & Philosophy
- Started by TobyBartels
- Comments 7
- Last comment by TobyBartels
- Last Active Dec 22nd 2010

- Discussion Type
- discussion topicorientation
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Dec 21st 2010

- Discussion Type
- discussion topicshape of an (oo,1)-topos
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Dec 21st 2010

- Discussion Type
- discussion topicCompletion
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 10
- Last comment by zskoda
- Last Active Dec 20th 2010

- Discussion Type
- discussion topicIs this simplicial set exactly the nerve of the contractible groupoid on two generators?
- Category Mathematics, Physics & Philosophy
- Started by Harry Gindi
- Comments 13
- Last comment by Mike Shulman
- Last Active Dec 17th 2010

- Discussion Type
- discussion topicBiequivalence
- Category Mathematics, Physics & Philosophy
- Started by Thomas Nikolaus
- Comments 7
- Last comment by TobyBartels
- Last Active Dec 17th 2010

- Discussion Type
- discussion topiclittle etale topos
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Dec 17th 2010

- Discussion Type
- discussion topicPlus and double plus constructions
- Category Mathematics, Physics & Philosophy
- Started by Harry Gindi
- Comments 2
- Last comment by DavidRoberts
- Last Active Dec 16th 2010

- Discussion Type
- discussion topicWhat do the sheaves look like for this site?
- Category Mathematics, Physics & Philosophy
- Started by Harry Gindi
- Comments 14
- Last comment by Harry Gindi
- Last Active Dec 15th 2010

- Discussion Type
- discussion topicquasicoherent (infinity,1)-sheaf
- Category Latest Changes
- Started by Urs
- Comments 6
- Last comment by zskoda
- Last Active Dec 15th 2010

- Discussion Type
- discussion topicinternal hom in dg-geometry
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 3
- Last comment by Urs
- Last Active Dec 15th 2010

- Discussion Type
- discussion topicinternal ∞-groupoid versus internal groupoid
- Category Latest Changes
- Started by Mike Shulman
- Comments 6
- Last comment by Mike Shulman
- Last Active Dec 14th 2010

- Discussion Type
- discussion topicirreducible polynomial
- Category Latest Changes
- Started by Urs
- Comments 5
- Last comment by zskoda
- Last Active Dec 14th 2010

- Discussion Type
- discussion topicAn explanation of the right-anodyne morphism thing that I mentioned
- Category Mathematics, Physics & Philosophy
- Started by Harry Gindi
- Comments 7
- Last comment by Urs
- Last Active Dec 14th 2010

- Discussion Type
- discussion topicPIE-limits
- Category Latest Changes
- Started by Mike Shulman
- Comments 2
- Last comment by Mike Shulman
- Last Active Dec 14th 2010

- Discussion Type
- discussion topicrank at [Galois theory]
- Category nLab General Discussions
- Started by DavidRoberts
- Comments 8
- Last comment by TobyBartels
- Last Active Dec 14th 2010

- Discussion Type
- discussion topicfully dualizable object
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Dec 13th 2010

- Discussion Type
- discussion topicperfect infinity-stack
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Dec 13th 2010

- Discussion Type
- discussion topichomotopy - contents
- Category Latest Changes
- Started by Urs
- Comments 7
- Last comment by Tim_Porter
- Last Active Dec 13th 2010

- Discussion Type
- discussion topicSearching the Lab with apparently strange results.
- Category nLab Technical Matters
- Started by Tim_Porter
- Comments 11
- Last comment by Tim_Porter
- Last Active Dec 12th 2010

- Discussion Type
- discussion topicBaues
- Category Latest Changes
- Started by Tim_Porter
- Comments 1
- Last comment by Tim_Porter
- Last Active Dec 12th 2010

- Discussion Type
- discussion topicPresheaf model for marked simplicial sets: progress?
- Category Mathematics, Physics & Philosophy
- Started by Harry Gindi
- Comments 3
- Last comment by Harry Gindi
- Last Active Dec 11th 2010

- Discussion Type
- discussion topicdecomposition of n-group actions
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 8
- Last comment by Tim_Porter
- Last Active Dec 11th 2010

- Discussion Type
- discussion topicList of the base-change and hom-tensor adjunctions in a topos
- Category Mathematics, Physics & Philosophy
- Started by Harry Gindi
- Comments 1
- Last comment by Harry Gindi
- Last Active Dec 11th 2010

- Discussion Type
- discussion topiccell complex
- Category Latest Changes
- Started by Urs
- Comments 10
- Last comment by Tim_Porter
- Last Active Dec 10th 2010

- Discussion Type
- discussion topicmodel structure on sSet-presheaves
- Category Latest Changes
- Started by Urs
- Comments 6
- Last comment by Harry Gindi
- Last Active Dec 10th 2010

- Discussion Type
- discussion topicdifferential forms on presheaves/on simplicial sets
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Dec 10th 2010

- Discussion Type
- discussion topicWhat is filtered localization good for?
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 7
- Last comment by DavidCarchedi
- Last Active Dec 9th 2010

- Discussion Type
- discussion topicetale (infinity,1)-site
- Category Latest Changes
- Started by Urs
- Comments 23
- Last comment by zskoda
- Last Active Dec 9th 2010

- Discussion Type
- discussion topicdg-operad
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Dec 9th 2010

- Discussion Type
- discussion topicmodel structure on dg-operads
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Dec 9th 2010

- Discussion Type
- discussion topicblob n-category
- Category Latest Changes
- Started by Urs
- Comments 8
- Last comment by Urs
- Last Active Dec 9th 2010

- Discussion Type
- discussion topicsSet-site
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Dec 9th 2010

- Discussion Type
- discussion topicbicategory of relations
- Category Latest Changes
- Started by Todd_Trimble
- Comments 22
- Last comment by FinnLawler
- Last Active Dec 9th 2010

- Discussion Type
- discussion topicRelation between Hovey-Shipley-Smith's tensor of pointed simplicial symmetric sequences and operads
- Category Mathematics, Physics & Philosophy
- Started by Harry Gindi
- Comments 22
- Last comment by Mike Shulman
- Last Active Dec 8th 2010