Papers and preprints

These papers are in gzipped postscript. If you click on the "also at" links you'll get their abstracts. Caveat: the papers are not necessarily the final versions, some of them have wrong dates (because of the Latex "\today" command), and there may be other small discrepancies. Never mind. (23 Sept 2002)
J. D. Roberts. Rozansky-Witten theory.
For proceedings of Georgia Topology conference, May 2001.
Also at: math.QA/0112209

J. D. Roberts, J. Sawon. Generalisations of Rozansky-Witten invariants.
For proceedings of Kyoto conference on quantum invariants, Sept. 2001
Also at: math.DG/0112210

J. D. Roberts. Asymptotics and 6j-symbols.
For proceedings of Kyoto conference on quantum invariants, Sept. 2001.
Also at: math.QA/0201177

J. D. Roberts. Unusual formulae for the Euler characteristic.
To appear in Journal of Knot Theory and its Ramifications.
Also at: math.GT/0201178

J. D. Roberts. Irreducibility of some quantum representations of mapping class groups.
To appear in proceedings of "Knots in Hellas 98" (Delphi) conference.
Also at: math.QA/9909128

J. D. Roberts. Classical 6j-symbols and the tetrahedron.
Geometry and Topology 3 (1999), 21--66.
Also at: math-ph/9812013 and Geometry and Topology

J. D. Roberts. Kirby calculus in manifolds with boundary.
Turkish J. Math. 21 (1997), 111--117.
MR: 99c:57045. Also at: math.GT/9812086.

G. Masbaum, J. D. Roberts. A simple proof of integrality of quantum invariants at prime roots of unity.
Math. Proc. Cam. Phil. Soc. 121 (1997), 443--454.
MR: 98h:57037

J. D. Roberts. Quantum invariants via skein theory.
Phd. Thesis, University of Cambridge (April 1994).

J. D. Roberts. Refined state-sum invariants of 3- and 4-manifolds.
in Proc. 1993 Georgia topology conference (ed. Will Kazez), AMS/IP (1997), 217--234.
MR: 98j:57031

G. Masbaum, J. D. Roberts. On central extensions of mapping class groups.
Math. Annalen 302 (1995), 131--150.
MR: 96i:57013

J. D. Roberts. Skein theory and Turaev-Viro invariants.
Topology 34 (1995), 771--787.
MR: 97g:57014

J. D. Roberts. Skeins and mapping class groups.
Math. Proc. Cam. Phil. Soc. 115 (1994), 53--77.
MR: 94m:57035

(Unfortunately that last one doesn't have diagrams in the postscript.)

Lecture notes

J. D. Roberts. Knots Knotes.
Draft lecture notes for Edinburgh 4th year undergrad "Knot Theory" course, spring 1999.
The pictures are very badly scanned - sorry! Also available as a PDF file