## Robert Tang

Since September 2020, I am a lecturer (assistant professor) in pure mathematics at Xi’an Jiaotong-Liverpool University.

PhD Mathematics 2013, University of Warwick

BSc (Honours) 2008, University of Sydney

Research interests: Low-dimensional topology, geometric group theory, hyperbolic geometry, Teichmueller theory, dynamical systems

Email: `robert (dot) tang (at) xjtlu (dot) edu (dot) cn`

### Seminar

I am an organiser of the Geometric Group Theory in East Asia (GGTea) seminar.

### Previous positions

- Postdoctoral Scholar, Okinawa Institute of Science and Technology, 2017 - 2020
- Postdoctoral Scholar, University of Oklahoma, 2014 - 2017
- Research Member, Mathematical Sciences Research Institute, Berkeley, California, Fall 2016
- Postdoctoral Fellow, ICERM, Brown University, Fall 2013

### Papers and Publications

My papers on the arXiv can be found here.

*Straightening geometries and geometric flip graphs*(with Mark Bell and Valentina Disarlo).

In preparation.

*Detecting danger in gridworlds using Gromov's Link Condition*(with Thomas F Burns).

Preprint, January 2022, arXiv.

*Large-scale geometry of the saddle connection graph*(with Valentina Disarlo, Huiping Pan, and Anja Randecker).

**Transactions of the American Mathematical Society**, Volume 374, Number 11, November 2021, pp 8101–8129. DOI: 10.1090/tran/8448.

*Affine diffeomorphism groups are undistorted*.

**Journal of the London Mathematical Society**, February 2021, Volume 104, Issue 2, pp 747-769, DOI: 10.1112/jlms.12445.

*Rigidity of the saddle connection complex*(with Valentina Disarlo and Anja Randecker).

**Journal of Topology**, September 2022, Volume 15, Issue 3, pp 1248-1310, DOI: 10.1112/topo.12242.

*Cubical geometry in the polygonalisation complex*(with Mark Bell and Valentina Disarlo).

**Mathematical Proceedings of the Cambridge Philosophical Society,**July 2019, Volume 167, Issue 1, pp. 1-22, DOI: 10.1017/S0305004118000130.

*Veech surfaces and simple closed curves*(with Max Forester and Jing Tao).

**Israel Journal of Mathematics,**February 2018, Volume 223, Issue 1, pp 323-342, DOI: 10.1007/s11856-017-1617-5.

*Shadows of Teichmüller discs in the curve graph*(with Richard Webb).

**International Mathematics Research Notices,**June 2018, Volume 2018, Issue 11, pp 3301–3341, DOI: 10.1093/imrn/rnw318.

*Projections in the curve complex arising from covering maps.*

**Pacific Journal of Mathematics,**August 2017, Vol. 291, No. 1, 213-239, DOI: 10.2140/pjm.2017.291.213.

*The curve complex and covers via hyperbolic 3-manifolds.*

**Geometriae Dedicata**, December 2012, Volume 161, Issue 1, pp 233-237, DOI: 10.1007/s10711-012-9703-7.

### Grants

- NSFC Young Scientists Fund, 2022 - 2024
- JSPS KAKENHI Grant-in-Aid for Early-Career Scientists, 2019 - 2020