Milton Keynes, UK
Research associate - Bielefeld University, Germany
Lecturer - Open University, UK
Homeomorphic to the disk implies existence of fixed point common to all isometries?
Examples of falsified (or currently open) longstanding conjectures leading to large bodies of incorrect results.
Does taking the direct limit of chain complexes commute with taking homology?
Can the n-string sphere braid group embed in to the (n+1)-string sphere braid group?
Relation Between Truncated Braid Groups and Regular Tilings of the Complex and Hyperbolic Plane