nLab Latest Revisions

• Radu Roiban ( Radu Roiban(rev # 9) | history )
  by Urs Schreiber at August 11, 2026 at 05:10:20
• Bondi-Metzner-Sachs group ( Bondi-Metzner-Sachs group(rev # 14) | history )
  by Urs Schreiber at August 11, 2026 at 05:07:36
• asymptotic symmetry ( asymptotic symmetry(rev # 14) | history )
  by Urs Schreiber at August 11, 2026 at 05:02:26
• flat space holography ( flat space holography(rev # 20) | history )
  by Urs Schreiber at August 11, 2026 at 05:01:38
• free coproduct completion ( free coproduct completion(rev # 28) | history )
  by Bálint Kocsis? at August 10, 2026 at 15:19:25
• Hermitian form ( Hermitian form(rev # 32) | history )
  by Urs Schreiber at August 10, 2026 at 14:22:01
• Sandbox ( Sandbox(rev # 4058) | history )
  by Urs Schreiber at August 10, 2026 at 14:13:25
• Hermitian form ( Hermitian form(rev # 31) | history )
  by Dean Young? at August 10, 2026 at 13:29:21
• simplicial localization ( simplicial localization(rev # 49) | history )
  by Urs Schreiber at August 10, 2026 at 13:11:10
• adjoint functor theorem ( adjoint functor theorem(rev # 86) | history )
  by varkor at August 10, 2026 at 12:52:16
• Hermitian form ( Hermitian form(rev # 30) | history )
  by Dean Young? at August 10, 2026 at 12:49:42
• Sandbox2 ( Sandbox2(rev # 150) | history )
  by Dean Young? at August 10, 2026 at 12:29:40
• Paolo Bertozzini ( Paolo Bertozzini(rev # 2) | history )
  by Paolo Bertozzini at August 10, 2026 at 11:58:15
• observation of anyons in fractional quantum Hall systems -- references ( observation of anyons in fractional quantum Hall systems -- references(rev # 16) | history )
  by Urs Schreiber at August 10, 2026 at 11:25:53
• Ady Stern ( Ady Stern(rev # 10) | history )
  by Urs Schreiber at August 10, 2026 at 10:55:56
• observation of anyons in fractional quantum Hall systems -- references ( observation of anyons in fractional quantum Hall systems -- references(rev # 15) | history )
  by Urs Schreiber at August 10, 2026 at 10:54:58
• quantum Hall effect ( quantum Hall effect(rev # 125) | history )
  by Urs Schreiber at August 10, 2026 at 10:42:09
• Jainendra K. Jain ( Jainendra K. Jain(rev # 14) | history )
  by Urs Schreiber at August 10, 2026 at 10:40:21
• anyons in the quantum Hall effect -- references ( anyons in the quantum Hall effect -- references(rev # 24) | history )
  by Urs Schreiber at August 10, 2026 at 10:39:08
• Lukas Müller ( Lukas Müller(rev # 12) | history )
  by Urs Schreiber at August 10, 2026 at 07:53:17
• QFT with defects ( QFT with defects(rev # 42) | history )
  by Urs Schreiber at August 10, 2026 at 07:52:07
• semiseparated scheme ( semiseparated scheme(rev # 8) | history )
  by Urs Schreiber at August 10, 2026 at 07:40:55
• constant functor ( constant functor(rev # 17) | history )
  by Anonymousa? at August 10, 2026 at 05:33:54
• semiseparated scheme ( semiseparated scheme(rev # 7) | history )
  by Anonymous2? at August 9, 2026 at 22:37:36
• characteristic zero ( characteristic zero(rev # 8) | history )
  by Urs Schreiber at August 9, 2026 at 20:21:33
• Solomon Lefschetz ( Solomon Lefschetz(rev # 4) | history )
  by Urs Schreiber at August 9, 2026 at 20:20:13
• 2-category equipped with proarrows ( 2-category equipped with proarrows(rev # 66) | history )
  by Bálint Kocsis? at August 9, 2026 at 19:49:35
• characteristic zero ( characteristic zero(rev # 7) | history )
  by Samuel? at August 9, 2026 at 18:11:40
• Complex cobordism and stable homotopy groups of spheres ( Complex cobordism and stable homotopy groups of spheres(rev # 23) | history )
  by Urs Schreiber at August 9, 2026 at 17:18:51
• locally compact topological space ( locally compact topological space(rev # 58) | history )
  by Bálint Kocsis? at August 9, 2026 at 15:47:33
• product topological space ( product topological space(rev # 23) | history )
  by Bálint Kocsis? at August 9, 2026 at 15:43:22
• (infinity,1)-module bundle ( (infinity,1)-module bundle(rev # 23) | history )
  by Dean Young? at August 9, 2026 at 10:25:58
• Sandbox2 ( Sandbox2(rev # 149) | history )
  by Dean Young? at August 9, 2026 at 06:01:11
• cocone ( cocone(rev # 10) | history )
  by Mike? at August 9, 2026 at 04:56:30
• Tarski universe ( Tarski universe(rev # 56) | history )
  by Bálint Kocsis? at August 9, 2026 at 01:15:00
• proper homotopy theory ( proper homotopy theory(rev # 45) | history )
  by Urs Schreiber at August 8, 2026 at 20:59:51
• cogerm differential form ( cogerm differential form(rev # 29) | history )
  by Toby Bartels at August 8, 2026 at 19:56:17
• nonabelian Poincaré duality ( nonabelian Poincaré duality(rev # 15) | history )
  by Asher Lundell? at August 8, 2026 at 19:23:17
• nice topological space ( nice topological space(rev # 29) | history )
  by Bálint Kocsis? at August 8, 2026 at 17:08:02
• proper homotopy theory ( proper homotopy theory(rev # 44) | history )
  by Urs Schreiber at August 8, 2026 at 16:54:44
• Aniceto Murillo ( Aniceto Murillo(rev # 9) | history )
  by Urs Schreiber at August 8, 2026 at 16:52:27
• exterior space ( exterior space(rev # 2) | history )
  by Urs Schreiber at August 8, 2026 at 16:51:40
• exterior space ( exterior space(rev # 1) | history )
  by Dmitri Pavlov at August 8, 2026 at 16:14:23
• quantum anomalous Hall effect ( quantum anomalous Hall effect(rev # 59) | history )
  by Urs Schreiber at August 8, 2026 at 08:58:57
• weak topology ( weak topology(rev # 16) | history )
  by Bálint Kocsis? at August 8, 2026 at 00:01:49
• topological concrete category ( topological concrete category(rev # 48) | history )
  by Bálint Kocsis? at August 7, 2026 at 23:45:21
• final lift ( final lift(rev # 8) | history )
  by Bálint Kocsis? at August 7, 2026 at 23:04:25
• dualizing object ( dualizing object(rev # 22) | history )
  by Bálint Kocsis? at August 7, 2026 at 22:44:39
• duality ( duality(rev # 53) | history )
  by Bálint Kocsis? at August 7, 2026 at 19:39:37
• category with duals ( category with duals(rev # 11) | history )
  by Bálint Kocsis? at August 7, 2026 at 18:53:42
• dualizing object in a closed category ( dualizing object in a closed category(rev # 13) | history )
  by Bálint Kocsis? at August 7, 2026 at 18:28:06
• ring of integers ( ring of integers(rev # 15) | history )
  by Ben Eltschig? at August 7, 2026 at 16:35:27
• monoidal preorder ( monoidal preorder(rev # 6) | history )
  by Martin Brandenburg at August 7, 2026 at 15:01:05
• T-Grothendieck construction ( T-Grothendieck construction(rev # 2) | history )
  by Bálint Kocsis? at August 7, 2026 at 14:01:24
• Freudenthal suspension theorem ( Freudenthal suspension theorem(rev # 20) | history )
  by Urs Schreiber at August 7, 2026 at 10:22:44
• Schauenburg bialgebroid ( Schauenburg bialgebroid(rev # 4) | history )
  by Zoran Škoda at August 7, 2026 at 10:15:14
• Hopf-Galois extension ( Hopf-Galois extension(rev # 20) | history )
  by Zoran Škoda at August 7, 2026 at 10:14:05
• Freudenthal suspension theorem ( Freudenthal suspension theorem(rev # 19) | history )
  by Urs Schreiber at August 7, 2026 at 09:16:59
• second stable homotopy group of spheres ( second stable homotopy group of spheres(rev # 10) | history )
  by Urs Schreiber at August 7, 2026 at 08:35:26
• first stable homotopy group of spheres ( first stable homotopy group of spheres(rev # 11) | history )
  by Urs Schreiber at August 7, 2026 at 08:34:49
• homotopy groups of spheres ( homotopy groups of spheres(rev # 64) | history )
  by Urs Schreiber at August 7, 2026 at 08:33:38
• third stable homotopy group of spheres ( third stable homotopy group of spheres(rev # 17) | history )
  by Urs Schreiber at August 7, 2026 at 08:30:50
• 2-category equipped with proarrows ( 2-category equipped with proarrows(rev # 65) | history )
  by Bálint Kocsis? at August 7, 2026 at 01:18:13
• generalized multicategory ( generalized multicategory(rev # 27) | history )
  by Bálint Kocsis? at August 6, 2026 at 23:10:50
• Jeffrey Bergfalk ( Jeffrey Bergfalk(rev # 2) | history )
  by Urs Schreiber at August 6, 2026 at 12:48:32
• morphology ( morphology(rev # 3) | history )
  by Erk? at August 6, 2026 at 10:13:01
• prelattice ( prelattice(rev # 15) | history )
  by Ivan Smirnov? at August 6, 2026 at 09:12:20
• Deligne's theorem on tensor categories ( Deligne's theorem on tensor categories(rev # 86) | history )
  by Urs Schreiber at August 6, 2026 at 06:57:16
• Fabio Ferrari Ruffino ( Fabio Ferrari Ruffino(rev # 4) | history )
  by Urs Schreiber at August 6, 2026 at 06:46:12
• differential cohomology ( differential cohomology(rev # 69) | history )
  by Urs Schreiber at August 6, 2026 at 06:44:47
• Tim Porter ( Tim Porter(rev # 59) | history )
  by Tim Porter at August 6, 2026 at 06:31:35
• Jeffrey Bergfalk ( Jeffrey Bergfalk(rev # 1) | history )
  by Tim Porter at August 6, 2026 at 06:28:42
• strong homology ( strong homology(rev # 7) | history )
  by Tim Porter at August 6, 2026 at 06:15:36
• list of category theory papers that never appeared ( list of category theory papers that never appeared(rev # 25) | history )
  by varkor at August 5, 2026 at 20:13:56
• Wilson loop ( Wilson loop(rev # 44) | history )
  by Urs Schreiber at August 5, 2026 at 12:40:51
• Schwinger-Dyson equation ( Schwinger-Dyson equation(rev # 19) | history )
  by Urs Schreiber at August 5, 2026 at 12:36:49
• Alexander A. Migdal ( Alexander A. Migdal(rev # 8) | history )
  by Urs Schreiber at August 5, 2026 at 12:36:15
• Yuri Makeenko ( Yuri Makeenko(rev # 4) | history )
  by Urs Schreiber at August 5, 2026 at 12:35:48
• Simon Henry ( Simon Henry(rev # 12) | history )
  by Urs Schreiber at August 5, 2026 at 11:15:43
• rewriting ( rewriting(rev # 36) | history )
  by Urs Schreiber at August 5, 2026 at 11:15:04
• David Gepner ( David Gepner(rev # 17) | history )
  by Urs Schreiber at August 5, 2026 at 11:11:42
• Hadrian Heine ( Hadrian Heine(rev # 2) | history )
  by Urs Schreiber at August 5, 2026 at 11:11:21
• Gray tensor product ( Gray tensor product(rev # 40) | history )
  by Urs Schreiber at August 5, 2026 at 11:10:44
• Schwinger-Dyson equation ( Schwinger-Dyson equation(rev # 18) | history )
  by Dean Young? at August 5, 2026 at 10:38:17
• Andrée Ehresmann ( Andrée Ehresmann(rev # 9) | history )
  by Urs Schreiber at August 5, 2026 at 09:45:39
• Jean-Marc Cordier ( Jean-Marc Cordier(rev # 9) | history )
  by Urs Schreiber at August 5, 2026 at 09:44:33
• Tim Porter ( Tim Porter(rev # 58) | history )
  by Rod Mc Guire at August 5, 2026 at 09:18:38
• Jean-Marc Cordier ( Jean-Marc Cordier(rev # 8) | history )
  by Added link to Obituary.? at August 5, 2026 at 06:06:31
• Tim Porter ( Tim Porter(rev # 57) | history )
  by Tim Porter at August 5, 2026 at 05:38:31
• classical double copy ( classical double copy(rev # 31) | history )
  by jj? at August 5, 2026 at 03:06:51
• cover ( cover(rev # 15) | history )
  by Mark John Hopkins at August 5, 2026 at 03:03:27
• Tristan Hübsch ( Tristan Hübsch(rev # 12) | history )
  by Urs Schreiber at August 4, 2026 at 20:06:00
• Tristan Hübsch ( Tristan Hübsch(rev # 11) | history )
  by Tristan Hubsch at August 4, 2026 at 16:11:54
• conifold transition ( conifold transition(rev # 12) | history )
  by Tristan Hubsch at August 4, 2026 at 14:43:47
• Tristan Hübsch ( Tristan Hübsch(rev # 10) | history )
  by Tristan Hubsch at August 4, 2026 at 13:05:55
• branched cover of the Riemann sphere ( branched cover of the Riemann sphere(rev # 8) | history )
  by Jesus Lopez? at August 4, 2026 at 11:57:09
• morphology ( morphology(rev # 2) | history )
  by Urs Schreiber at August 4, 2026 at 11:52:29
• classifying topos ( classifying topos(rev # 79) | history )
  by Mohamed Barakat at August 4, 2026 at 10:59:51
• morphology ( morphology(rev # 1) | history )
  by Erk? at August 4, 2026 at 08:13:18
• linguistics ( linguistics(rev # 46) | history )
  by Erk? at August 4, 2026 at 07:58:05