David Roberts All pages

Overview

The personal wiki of David Roberts has 57 pages. Some of these are organised into categories.

Pages

• (n+1)-ary factorisation system on nCat
• 2-bundle
• 2-connected cover of a 2-crossed complex
• admissible maps
• anafunctor
• Andrew Stacey
• bicategory of fractions
• bigroupoid
• class of admissible maps
• cocompact proper Lie groupoids
• cofinal pretopology
• comments on chapter 2
• comments on chapter 3
• Con(ZF+notWISC)
• David Roberts
• Delta-space
• empty 1
• empty 2
• fat realization
• fundamental 2-group
• geometric realization
• geometry on S^5
• Grothendieck pretopology
• HomePage
• ideas
• list of journals publishing category theory
• local epimorphism
• Maths 1A Algebra 2014 semester 1
• Maths 1A Algebra 2016 semester 2
• new link
• pseudoinverse
• sandbox
• saturated pretopology
• scratch 2014
• scratch 2015
• scratch 2016
• scratch 2017
• scratch 2021
• set theory from ETCS (Trimble)
• shrinkable map
• singleton
• smooth fundamental bigroupoid
• Supervision and teaching
• talks
• Teaching
• the manifold of 2-arrows
• Theorem A for topological categories
• Theorem A for topological groupoids
• thesis
• topological category
• topological fundamental bigroupoid
• topological groupoid
• Urs Schreiber
• weak equivalence
• weak equivalence of internal categories
• weak equivalence of topological bigroupoids
• which smooth paths do I use