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

(0 2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry applications arithmetic arithmetic-geometry beauty bundles calculus categories category category-theory chern-simons-theory chern-weil-theory cohesion cohesive-homotopy-theory cohesive-homotopy-type-theory cohomology colimit colimits combinatorics comma complex complex-geometry computable-mathematics computer-science connection constructive constructive-mathematics cosmology deformation-theory derived-geometry descent differential differential-cohomology differential-geoemtry differential-geometry dold fibration duality elliptic-cohomology factorization-system fibration foundations functional-analysis functor galois-theory gauge-theory gebra general topology geoemtry geometric geometric-quantization geometry gravity group-theory 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 infinity integration-theory internal-categories k-theory kan lie lie-theory limit limits linear linear-algebra locale localization logic manifolds mathematics measure measure-theory meta modal-logic model model-category-theory monoidal monoidal-category-theory morphism motives motivic-cohomology n-groups newpage nonassociative noncommutative noncommutative-geometry number-theory operator operator-algebra order-theory 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 set set-theory sheaf simplicial space spin-geometry stable-homotopy-theory stack string string-theory subobject supergeometry symplectic-geometry synthetic-differential-geometry terminology theory topology topos topos-theory tqft type-theory 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 topichomothety
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active 6 hours ago

- Discussion Type
- discussion topicFirst slide syndrome!
- Category Latest Changes
- Started by Tim_Porter
- Comments 1
- Last comment by Tim_Porter
- Last Active 6 hours ago

- Discussion Type
- discussion topicStarobinsky model of cosmic inflation
- Category Latest Changes
- Started by Urs
- Comments 3
- Last comment by Urs
- Last Active 15 hours ago

- Discussion Type
- discussion topicBorger's absolute geometry
- Category Latest Changes
- Started by Urs
- Comments 18
- Last comment by Urs
- Last Active 17 hours ago

- Discussion Type
- discussion topicgeometry of physics -- prequantum geometry
- Category Latest Changes
- Started by Urs
- Comments 2
- Last comment by Urs
- Last Active 1 day ago

- Discussion Type
- discussion topicDeligne cohomology
- Category Latest Changes
- Started by Urs
- Comments 11
- Last comment by Urs
- Last Active 1 day ago

- Discussion Type
- discussion topicthe Jet-coalgebra for integrability of G-structures
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 20
- Last comment by Urs
- Last Active 1 day ago

- Discussion Type
- discussion topicgraded vector space
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by Tim_Porter
- Last Active 1 day ago

- Discussion Type
- discussion topicL-infinity-algebra
- Category Latest Changes
- Started by Urs
- Comments 8
- Last comment by Urs
- Last Active 1 day ago

- Discussion Type
- discussion topicdg-Lie algebra
- Category Latest Changes
- Started by Urs
- Comments 3
- Last comment by Urs
- Last Active 1 day ago

- Discussion Type
- discussion topicIs the EM-topos of the Jet-comonad cohesive if the base is?
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 19
- Last comment by David_Corfield
- Last Active 1 day ago

- Discussion Type
- discussion topicPoisson manifold
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active 1 day ago

- Discussion Type
- discussion topicbase change of codomain fibration along maps with tiny fibers
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 9
- Last comment by Mike Shulman
- Last Active 2 days ago

- Discussion Type
- discussion topiccartographic group
- Category Latest Changes
- Started by Noam_Zeilberger
- Comments 7
- Last comment by Noam_Zeilberger
- Last Active 3 days ago

- Discussion Type
- discussion topicWKB or semiclassical
- Category Latest Changes
- Started by zskoda
- Comments 3
- Last comment by Urs
- Last Active 3 days ago

- Discussion Type
- discussion topicbasic questions about Lawvere theories
- Category Mathematics, Physics & Philosophy
- Started by adeelkh
- Comments 8
- Last comment by Zhen Lin
- Last Active 4 days ago

- Discussion Type
- discussion topicCogerm forms
- Category Latest Changes
- Started by TobyBartels
- Comments 71
- Last comment by Mike Shulman
- Last Active 4 days ago

- Discussion Type
- discussion topicWhat is a variable?
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 97
- Last comment by TobyBartels
- Last Active 5 days ago

- Discussion Type
- discussion topicenriched vs internal pointwise Kan extensions
- Category nLab General Discussions
- Started by Emily Riehl
- Comments 4
- Last comment by Roald
- Last Active 6 days ago

- Discussion Type
- discussion topicM-theory on G2-manifolds
- Category Latest Changes
- Started by Urs
- Comments 9
- Last comment by Urs
- Last Active 7 days ago

- Discussion Type
- discussion topicjet scheme
- Category Latest Changes
- Started by zskoda
- Comments 2
- Last comment by Michael_Bachtold
- Last Active 7 days ago

- Discussion Type
- discussion topicarc space
- Category Latest Changes
- Started by zskoda
- Comments 2
- Last comment by zskoda
- Last Active 7 days ago

- Discussion Type
- discussion topicHigher differentials, again
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 62
- Last comment by Michael_Bachtold
- Last Active 7 days ago

- Discussion Type
- discussion topictopological matter; almost SPAM
- Category nLab Organisation
- Started by zskoda
- Comments 19
- Last comment by zskoda
- Last Active 7 days ago

- Discussion Type
- discussion topicmathematical economics
- Category Latest Changes
- Started by zskoda
- Comments 1
- Last comment by zskoda
- Last Active 7 days ago

- Discussion Type
- discussion topicdescent morphism
- Category Latest Changes
- Started by Mike Shulman
- Comments 21
- Last comment by zskoda
- Last Active May 22nd 2015

- Discussion Type
- discussion topicAbout
- Category Latest Changes
- Started by Andrew Stacey
- Comments 10
- Last comment by Mike Shulman
- Last Active May 21st 2015

- Discussion Type
- discussion topicgeometry of physics -- BPS charges
- Category Latest Changes
- Started by Urs
- Comments 2
- Last comment by Urs
- Last Active May 21st 2015

- Discussion Type
- discussion topicarithmetic pretopos
- Category Latest Changes
- Started by Urs
- Comments 6
- Last comment by Urs
- Last Active May 21st 2015

- Discussion Type
- discussion topicNotation for identity morphism for a specific category?
- Category Mathematics, Physics & Philosophy
- Started by porton
- Comments 3
- Last comment by DavidRoberts
- Last Active May 21st 2015