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-categories 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 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 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 lie-theory limit limits linear linear-algebra locale localization logic manifolds mathematics measure-theory modal modal-logic model model-category-theory monads monoidal monoidal-category-theory morphism motives motivic-cohomology natural 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 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.

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 topicNew article: TAC
- Category Latest Changes
- Started by TobyBartels
- Comments 3
- Last comment by Urs
- Last Active Nov 19th 2009

- Discussion Type
- discussion topicGelfand-Neumark
- Category Latest Changes
- Started by David_Corfield
- Comments 14
- Last comment by zskoda
- Last Active Nov 19th 2009

- Discussion Type
- discussion topicRequest for references at commutative algebraic theory
- Category Latest Changes
- Started by Andrew Stacey
- Comments 4
- Last comment by Andrew Stacey
- Last Active Nov 18th 2009

- Discussion Type
- discussion topicDanger Todd Trimble!
- Category Latest Changes
- Started by TobyBartels
- Comments 2
- Last comment by Todd_Trimble
- Last Active Nov 18th 2009

- Discussion Type
- discussion topicmodel structure on simplicial presheaves and related
- Category Latest Changes
- Started by Urs
- Comments 13
- Last comment by Mike Shulman
- Last Active Nov 18th 2009

- Discussion Type
- discussion topicCan I has time of last edit plz?
- Category n-Forum
- Started by TobyBartels
- Comments 15
- Last comment by TobyBartels
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicAuthentication problem
- Category n-Forum
- Started by Mike Shulman
- Comments 13
- Last comment by TobyBartels
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicCograph
- Category Latest Changes
- Started by Eric
- Comments 45
- Last comment by Eric
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicdouble nerve
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicmodel structure on homotopical presheaves
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicn-symplectic manifold
- Category Latest Changes
- Started by Urs
- Comments 6
- Last comment by Urs
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicionads
- Category Latest Changes
- Started by Guest
- Comments 1
- Last comment by Guest
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicRearranged higher category theory contents
- Category Latest Changes
- Started by TobyBartels
- Comments 5
- Last comment by TobyBartels
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicLambek's theorem; natural numbers
- Category Latest Changes
- Started by Todd_Trimble
- Comments 1
- Last comment by Todd_Trimble
- Last Active Nov 16th 2009

- Discussion Type
- discussion topicRSS/Atom Feeds
- Category n-Forum
- Started by Andrew Stacey
- Comments 17
- Last comment by Mike Shulman
- Last Active Nov 16th 2009

- Discussion Type
- discussion topicThe remains of JA
- Category Latest Changes
- Started by TobyBartels
- Comments 3
- Last comment by Mike Shulman
- Last Active Nov 16th 2009

- Discussion Type
- discussion topicLevi-Civita connection
- Category Latest Changes
- Started by amathew
- Comments 2
- Last comment by Urs
- Last Active Nov 16th 2009

- Discussion Type
- discussion topicdiagrammatic order
- Category Latest Changes
- Started by Mike Shulman
- Comments 5
- Last comment by Mike Shulman
- Last Active Nov 16th 2009

- Discussion Type
- discussion topicGeneralised smooth algebras
- Category Latest Changes
- Started by TobyBartels
- Comments 1
- Last comment by TobyBartels
- Last Active Nov 13th 2009

- Discussion Type
- discussion topicDold fibration
- Category Latest Changes
- Started by Guest
- Comments 9
- Last comment by Urs
- Last Active Nov 13th 2009

- Discussion Type
- discussion topicsuspension object
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 13th 2009

- Discussion Type
- discussion topicsw double arrow
- Category Diagrams
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Nov 13th 2009

- Discussion Type
- discussion topicfibration of bigroupoids
- Category Latest Changes
- Started by Guest
- Comments 1
- Last comment by Guest
- Last Active Nov 13th 2009

- Discussion Type
- discussion topicKlein-2-geometry links
- Category Latest Changes
- Started by Guest
- Comments 2
- Last comment by David_Corfield
- Last Active Nov 12th 2009

- Discussion Type
- discussion topicE-k-operad
- Category Latest Changes
- Started by Urs
- Comments 11
- Last comment by Mike Shulman
- Last Active Nov 12th 2009

- Discussion Type
- discussion topiccochains on simplicial sets
- Category Latest Changes
- Started by Urs
- Comments 2
- Last comment by Eric
- Last Active Nov 11th 2009

- Discussion Type
- discussion topiccategorification
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Nov 11th 2009

- Discussion Type
- discussion topicEilenberg-Zilber operad
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 11th 2009

- Discussion Type
- discussion topicdirectory of personal webs
- Category Latest Changes
- Started by Andrew Stacey
- Comments 6
- Last comment by Eric
- Last Active Nov 11th 2009

- Discussion Type
- discussion topicbraided monoidal 2-categories
- Category Latest Changes
- Started by bwebster
- Comments 2
- Last comment by Urs
- Last Active Nov 10th 2009

- Discussion Type
- discussion topicthin homotopy
- Category Latest Changes
- Started by Guest
- Comments 2
- Last comment by Urs
- Last Active Nov 10th 2009

- Discussion Type
- discussion topicanafunctors between fibres of a Grothendieck fibration
- Category Latest Changes
- Started by Guest
- Comments 1
- Last comment by Guest
- Last Active Nov 9th 2009

- Discussion Type
- discussion topicSandbox
- Category Latest Changes
- Started by Andrew Stacey
- Comments 4
- Last comment by Andrew Stacey
- Last Active Nov 9th 2009

- Discussion Type
- discussion topicDiscussion Categories
- Category n-Forum
- Started by Andrew Stacey
- Comments 10
- Last comment by TobyBartels
- Last Active Nov 6th 2009

- Discussion Type
- discussion topicdouble category
- Category Latest Changes
- Started by Mike Shulman
- Comments 2
- Last comment by Urs
- Last Active Nov 6th 2009

- Discussion Type
- discussion topicContents/title trick
- Category Mathematics, Physics & Philosophy
- Started by TobyBartels
- Comments 12
- Last comment by TobyBartels
- Last Active Nov 5th 2009

- Discussion Type
- discussion topicNorm and Trace
- Category Mathematics, Physics & Philosophy
- Started by GavinWraith
- Comments 3
- Last comment by Urs
- Last Active Nov 5th 2009

- Discussion Type
- discussion topicLog Out Loopy (LOL)
- Category n-Forum
- Started by JonAwbrey
- Comments 4
- Last comment by Andrew Stacey
- Last Active Nov 5th 2009

- Discussion Type
- discussion topicUnderstanding Categories
- Category Mathematics, Physics & Philosophy
- Started by Eric
- Comments 28
- Last comment by Eric
- Last Active Nov 5th 2009

- Discussion Type
- discussion topiccone morphism
- Category Latest Changes
- Started by Eric
- Comments 7
- Last comment by FinnLawler
- Last Active Nov 5th 2009

- Discussion Type
- discussion topicunit enriched category
- Category Latest Changes
- Started by Mike Shulman
- Comments 1
- Last comment by Mike Shulman
- Last Active Nov 4th 2009

- Discussion Type
- discussion topiccogroup
- Category Latest Changes
- Started by David_Corfield
- Comments 14
- Last comment by Urs
- Last Active Nov 3rd 2009

- Discussion Type
- discussion topicderived group scheme and derived elliptic curve
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 3rd 2009

- Discussion Type
- discussion topicYoneda lemma for (oo,1)-categories
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 3rd 2009

- Discussion Type
- discussion topicclassical limit
- Category Latest Changes
- Started by Urs
- Comments 3
- Last comment by Urs
- Last Active Nov 3rd 2009

- Discussion Type
- discussion topicCourant-Dorfman algebra
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 3rd 2009

- Discussion Type
- discussion topicChristoffel symbol
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 3rd 2009

- Discussion Type
- discussion topicexamples for math on the web
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 26
- Last comment by TobyBartels
- Last Active Nov 3rd 2009

- Discussion Type
- discussion topicLatest Changes - Opinions
- Category Mathematics, Physics & Philosophy
- Started by Andrew Stacey
- Comments 9
- Last comment by Mike Shulman
- Last Active Nov 2nd 2009

- Discussion Type
- discussion topicInstiki restart
- Category Lab Elf News
- Started by Andrew Stacey
- Comments 5
- Last comment by TobyBartels
- Last Active Nov 2nd 2009

- Discussion Type
- discussion topiclambda ring structure of cycle ring
- Category Mathematics, Physics & Philosophy
- Started by GavinWraith
- Comments 11
- Last comment by Urs
- Last Active Nov 2nd 2009

- Discussion Type
- discussion topicTechnical category revisiited
- Category n-Forum
- Started by TobyBartels
- Comments 2
- Last comment by Andrew Stacey
- Last Active Nov 2nd 2009

- Discussion Type
- discussion topicCovariant derivative
- Category Latest Changes
- Started by amathew
- Comments 1
- Last comment by amathew
- Last Active Nov 2nd 2009

- Discussion Type
- discussion topic[[ordered pair]]
- Category Latest Changes
- Started by TobyBartels
- Comments 1
- Last comment by TobyBartels
- Last Active Nov 2nd 2009

- Discussion Type
- discussion topiccategorified gram-schmidt
- Category Latest Changes
- Started by Todd_Trimble
- Comments 1
- Last comment by Todd_Trimble
- Last Active Nov 1st 2009

- Discussion Type
- discussion topicQuestions for Mike (or whoever) …
- Category Latest Changes
- Started by TobyBartels
- Comments 1
- Last comment by TobyBartels
- Last Active Oct 31st 2009

- Discussion Type
- discussion topicHow do we weaken the Horn filling condition to get simplicial (?,0)-categories?
- Category Latest Changes
- Started by StephenGaito
- Comments 2
- Last comment by Urs
- Last Active Oct 31st 2009

- Discussion Type
- discussion topicsuper q-Schur algebra
- Category Latest Changes
- Started by bwebster
- Comments 5
- Last comment by Urs
- Last Active Oct 30th 2009

- Discussion Type
- discussion topicBerkovits superstring
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Oct 30th 2009

- Discussion Type
- discussion topicRiemannian metric
- Category Latest Changes
- Started by amathew
- Comments 2
- Last comment by Urs
- Last Active Oct 30th 2009