## Research Students

- Stefan
Wolf Thesis: The Hall Algebra and the Composition Monoid, Completed
May 2009
- Julia Sauter Started September 2009

## Ph.D. Thesis

- Quiver Representations respecting a quiver automorphism and a
theorem of Kac pdf

## List of publications

- Quiver representations respecting a quiver automorphism: a
generalisation of a theorem of Kac, J. London Math. Soc. 69 (2004)
79-96 pdf
- The composition algebra and composition monoid of the Kronecker
quiver, J. London Math. Soc. 72 (2005) 137-150 pdf
- Symmetric functions and the centre of the Ringel-Hall algebras of
a cyclic quiver, Math. Z. 251 (2005) 705-719 pdf
- Yang, Dong, On defining ideals or subrings of Hall algebras. With
an appendix by Andrew Hubery, Algebr. Represent. Theory 10 (2007)
619--629 pdf
- Hall polynomials for affine quivers, Represent. Theory 14 (2010)
355-378 pdf
- The cluster complex of an hereditary algebra, accepted by
Algebras and Representation Theory pdf

## Proceedings Articles

- Representations of a quiver with automorphism: generalising a
theorem of Kac, Fields
Institute
Communications
45 (2005) 187-200
- From triangulated categories to Lie algebras: A theorem of Peng
and Xiao, Trends in Representation Theory of Algebras and Related
Topics (Querétaro, 2004), editors J. De la Peña and R.
Bautista, Contemp.
Math.
406, Amer. Math. Soc. (2006) 51-66 math.RT/0502403
- Ringel-Hall algebras of cyclic quivers, Lectures during the
Workshop of ICRA XIII, São Paulo, Brazil arXiv:0904.0180

## Preprints

- Acyclic cluster algebras via Ringel-Hall algebras pdf
- Three presentations of quantum affine gl_n pdf