Emeritus Reader (The Topology and Geometry Group)
Selected publications
Article
Bartholomew, Andrew, Fenn, Roger, Kamada, Naoko and Kamada, Seiichi (2018) Doodles on surfaces. Journal of Knot Theory and Its Ramifications, 27 (12). ISSN 0218-2165
Bartholomew, Andrew, Fenn, Roger, Kamada, Naoko and Kamada, Seiichi (2018) On Gauss codes of virtual doodles. Journal of Knot Theory and its ramifications, 27 (11). 1843013 - 1-26. ISSN 0218-2165
Bartholomew, Andrew and Fenn, Roger (2008) Quaternionic invariants of virtual knots and links. Journal of Knot Theory and Its Ramifications, 17 (2). pp. 231-251. ISSN 0218-2165
Fenn, Roger, Rourke, Colin and Sanderson, Brian (2007) The rack space. Transactions of the American Mathematical Society, 359 (2). pp. 701-740. ISSN 0002-9947