Research Papers and Preprints
The cohomology and K-theory of commuting homeomorphisms of the Cantor set, (with Alan Forrest) Ergodic Theory and Dynamical Systems 19 (1999), 611-625.
Cohomology groups for projection point patterns, (with Alan Forrest and Johannes Kellendonk)
Proceedings, XIIIth International Congress of Mathematical Physics, (London, 2000), 333--339, Int. Press, Boston, MA, 2001. math-ph/0010050.
Cohomology of canonical projection tilings, (with Alan Forrest and Johannes Kellendonk) Communications in Mathematical Physics, 226 (2002), 289-322.Topological invariants for projection point patterns, (with Alan Forrest and Johannes Kellendonk)
Memoirs of the American Mathematical Society, volume 159. American Mathematical Society, 2002 (120 pp). ISBN 0-8218-2965-3. math.AT/0010265.
The K-theory of C*-algebras with finite dimensional irreducible representations (with Mikhail Shchukin) Integral equations and operator theory 54 (2006), 89-96.
Torsion in tiling homology and cohomology, (with Franz Gaehler and Johannes Kellendonk). math-ph/0505048.
Coverings, the graded centre and Hochschild cohomology (with Ed Green and Nicole Snashall) Journal of Pure and Applied Algebra 212 (2008), 2691-2706.
Omega spectra, coalgebraic algebra and applications
The structure of spaces representing a Landweber exact cohomology theory, (with Mike Hopkins)
Topology 34 (1995), 29-36.
A rational approach to Hopf rings, (with Nige Ray)
Journal of Pure and Applied Algebra 101 (1995), 313-333.
Coalgebraic algebra, (with Paul Turner)
Journal of Pure and Applied Algebra 129 (1998), 297-313.
The homology of spaces representing exact pairs of homotopy functors, (with Paul Turner)
Topology 38 (1999), 621-634.
Complete cohomology theories and the homology of their omega spectra,
Topology 41 (2002), 931-943.
Chromatic characteristic classes in ordinary group cohomology, (with David Green and Bjoern Schuster)
Topology, 42 (2003), 243-263. math.AT/0109019.
Subalgebras of group cohomology defined by infinite loop spaces, (with Bjoern Schuster)
Topology 44 (2005), 689-704. hs.ps
On the coalgebraic ring and Bousfield-Kan spectral sequence for a Landweber exact spectrum, (with Martin Bendersky)
Proceedings of the Edinburgh Mathematical Society 47 (2004), 513-532.
Other homotopy theory
The Morava K-theories of wreath products,
Mathematical Proceedings of the Cambridge Philosophical Society 107 (1990), 309-318.
Detruncating Morava K-Theory,
London Mathematical Society Lecture Note Series 176, (1992), 35-43.
Continuous Morava K-Theory and the geometry of the In-adic tower, (with Andrew Baker)
Mathematica Scandinavica 75 (1994), 67-81.
The Boardman homomorphism,
The Cech centennial conference, American Mathematical Society,
Contemporary Mathematics 181 (1995), 251-262.
The complex oriented cohomology of extended powers,
Annales de l'Institute Fourier 48 (1998), 517-534.
Higher vn torsion in Lie groups, (with Mamoru Mimura, Tetsu Nishimoto and Bjoern Schuster)
Journal of the Mathematical Society of Japan 50 (1998), 801-818.
Extensions of umbral calculus II: double delta operators, Leibniz extensions and Hattori-Stong theorems, (with Frances Clarke and Nige Ray)
Annales de l'Institute Fourier 51 (2001), 297-336.