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51	Applied Categorical Structures 11: 185–206, 2003. © 2003 Kluwer Academic Publishers. Printed in the Netherlands[removed]Homotopies and Automorphisms of Crossed Add to Reading List Source URL: pages.bangor.ac.uk Language: English - Date: 2007-03-15 03:50:38 Group theory Category theory Higher category theory Algebraic structures Crossed module Groupoid Double groupoid Lie groupoid 2-group Abstract algebra Algebra Homotopy theory
52	The Equivalence of ∞-groupoids and Crossed Complexes∗ Ronald Brown and Philip J Higgins Contents Introduction Add to Reading List Source URL: pages.bangor.ac.uk Language: English - Date: 2007-02-28 12:57:33 Category theory Homotopy theory Algebraic structures Group actions Algebraic topology Groupoid Double groupoid Crossed module Ronald Brown Abstract algebra Algebra Mathematics
53	The algebra of cubes∗† Philip J. Higgins, Department of Mathematics Durham University Durham, DH1 3LE England Add to Reading List Source URL: pages.bangor.ac.uk Language: English - Date: 2007-01-19 16:07:06 Mathematics Algebraic topology Category theory Higher category theory Algebraic structures Groupoid Double groupoid Crossed module Seifert–van Kampen theorem Abstract algebra Topology Homotopy theory
54	The Equivalence of ω-Groupoids and Cubical T -Complexes Ronald Brown and Philip J. Higgins∗ Introduction The Seifert-van Kampen Theorem involves the category Top∗ of spaces Add to Reading List Source URL: pages.bangor.ac.uk Language: English - Date: 2006-12-02 13:18:44 Homotopy theory Category theory Algebraic topology Group actions CW complex Seifert–van Kampen theorem Groupoid Constructible universe Abstract algebra Topology Mathematics
55	Crossed complexes and higher homotopy groupoids as non commutative tools for higher dimensional local-to-global problems∗ Ronald Brown† March 1, 2009 Add to Reading List Source URL: pages.bangor.ac.uk Language: English - Date: 2009-03-01 12:04:52 Homotopy theory Algebraic topology Category theory Higher category theory Algebraic structures Double groupoid Crossed module Groupoid Seifert–van Kampen theorem Abstract algebra Topology Mathematics
56	C AHIERS DE TOPOLOGIE ET GÉOMÉTRIE DIFFÉRENTIELLE CATÉGORIQUES RONALD B ROWN C HRISTOPHER B. S PENCER Add to Reading List Source URL: pages.bangor.ac.uk Language: English - Date: 2008-05-25 09:00:41 Mathematics Category theory Higher category theory Algebraic topology Algebraic structures Double groupoid Groupoid Seifert–van Kampen theorem Crossed module Abstract algebra Homotopy theory Topology
57	Advances in Mathematics 170, 71–[removed]doi:[removed]aima[removed]Multiple Categories: The Equivalence of a Globular and a Cubical Approach Fahd Ali Al-Agl1 Add to Reading List Source URL: pages.bangor.ac.uk Language: English - Date: 2004-10-19 08:39:54 Category theory Homotopy theory Algebraic topology Groupoid Seifert–van Kampen theorem Crossed module Double groupoid Category Simplicial set Abstract algebra Topology Mathematics
58	A MODEL STRUCTURE FOR THE HOMOTOPY THEORY OF CROSSED COMPLEXES Ronald BROWN and Marek GOLASINSKI∗ Abstract ` des complexes de chaˆıne mais avec les propri´et´es nonLes complexes crois´es sont analogues a Add to Reading List Source URL: pages.bangor.ac.uk Language: English - Date: 2007-05-28 06:24:21 Mathematics Category theory Model category Groupoid Crossed module Weak equivalence Homotopy group Fibration Fibrant object Homotopy theory Abstract algebra Topology
59	COVERING GROUPS OF NON-CONNECTED TOPOLOGICAL GROUPS REVISITED Ronald Brown and Osman Mucuk School of Mathematics University of Wales Bangor, Gwynedd LL57 1UT, U.K. Add to Reading List Source URL: pages.bangor.ac.uk Language: English - Date: 2006-12-18 10:25:20 Category theory Homotopy theory Algebraic topology Algebraic structures Symmetry Groupoid Lie groupoid Group action Double groupoid Abstract algebra Mathematics Algebra
60	COMPUTING HOMOTOPY TYPES USING CROSSED N -CUBES OF GROUPS∗ Ronald Brown University of Wales, Bangor Gwynedd LL57 1UT, U.K. Dedicated to the memory of Frank Adams Add to Reading List Source URL: pages.bangor.ac.uk Language: English - Date: 2006-08-12 17:58:10 Mathematics Algebraic topology Category theory Higher category theory Algebraic structures Crossed module Homotopy group Seifert–van Kampen theorem Double groupoid Abstract algebra Topology Homotopy theory