Mathematical interests:
Hyperbolic Geometry,
Kleinian groups,
Conformal Dynamics,
PattersonSullivan theory,
Gromov
hyperbolic groups and spaces,
CAT(0) spaces,
generalised notions of hyperbolicity and nonpositive curvature.
Papers:

The critical exponent, the Hausdorff dimension of the limit set and the
convex core entropy of a Kleinian group, with Katsuhiko
Matsuzaki, Conf.
Geom. Dyn. 19 (2015), 159196.
[preprint]

The boundary at infinity of a rough CAT(0) space, with Stephen M.
Buckley,
Anal. Geom. Metric Spaces 2 (2014), 5380.
[preprint]

Natural maps between CAT(0) boundaries, with Stephen M.
Buckley,
New York J. Math. 19 (2013), 110.
[preprint]

Rough CAT(0) spaces, with Stephen M.
Buckley,
Bull. Math. Soc. Sci. Math. Roumanie (N.S.) 55 (103) (2012), 333.
[preprint]

Geometric renormalisation and Hausdorff dimension for
loopaproximable geodesics escaping to infinity, with Bernd O.
Stratmann,
[preprint]

Checking atomicity of conformal ending measures for Kleinian
groups, with Katsuhiko
Matsuzaki and Bernd O.
Stratmann,
Conf.
Geom. Dyn. 14 (2010), 167183.
[preprint]

Ptolemaic spaces and CAT(0),
with Stephen M.
Buckley and David
J. Wraith,
Glasgow
Math. J. 51 (2009), 301314.

Gaps in the exponent spectrum of subgroups of discrete quasiconformal groups,
with Petra
BonfertTaylor and Edward
C. Taylor,
Kodai
Math. J. 31 (2008), 6881.

A note on Patterson measures,
with Pekka
Tukia,
Kodai
Math. J. 29 (2006), 227236.

Conformal measures associated to ends of hyperbolic nmanifolds,
with Jim
Anderson and Pekka
Tukia,
Quart.
J. Math. 58 (2007), 115.
[preprint]

Remarks on Hausdorff dimensions for
transient limit sets of Kleinian groups,
with Bernd O.
Stratmann,
Tohoku
Math. J. 56 (2004), 571582.

Constructing Restricted
Patterson Measures for Geometrically Infinite Kleinian Groups,
with Bernd O.
Stratmann,
Acta
Math. Sinica 22 (2006), 431446.

A note on Myrberg points and ergodicity,
Math. Scand. 96 (2005), 107116.

Myrberg type dynamics is preserved by
quasiisometries of hyperbolic space,
Math.
Proc. Cambridge Phil. Soc. 136 (2004), 413428.
