Qunhua Liu

Scientific assistant Mathematical Institute University of Koeln Weyertal 86-90 50931 Koeln Germany

Email: qliu at math.uni-koeln.de Tel: +49 0221 470 4600

Interests:

Representation theory of algebras, tilting theory, triangulated categories; Ringel-Hall algebras, and the relation with quantum groups and Kac-Moody Lie algebras; Schur algebras.

Papers, preprints:

• On the uniqueness of stratification of derived module categories, joint with Lidia Angeleri Hügel and Steffen Koenig, in preparation.
• Recollements and tilting objects, joint with L. Angeleri Hügel and S. Koenig, J. Pure Appl. Algebra, to appear arXiv:0908.1988v1
• The double Ringel-Hall algebra on a hereditary abelian finitary length category, joint with Rujing Dou and Jie Xiao, submitted to Science in China. arXiv:0908.1666v1
• Schur algebras of classical groups (in Chinese), Phd Thesis, 2007.
• On constructing ideals of the Hall algebra of type B, Alg. Coll., Volume 17 (2010), Number 1, 47-58.
• Schur algebras of classical groups II, Comm. Algebras, to appear.
• Schur algebras of classical groups, J. Algebra 301 (2006) 867-887.

Some mathematicians:

• My phd supervisors: Jie Xiao (Tsinghua University) and Steffen Koenig (University of Koeln)
• Berhard Keller
• Claus Michael Ringel
• Dong Yang

Links:

• Conference: Perspectives in Representation Theory, Koeln, Septerber 27 to October 3, 2009
• Summer school on Geometry of Representations, Koeln, July 26 to August 1, 2009
• Workshop on Representations and cohomology, Koeln, March 1-6, 2009
• FDLIST (information list for representation theory of finite dimensional algebras)
• Rheinenerge network: Representation theory of algebras and algebraic Lie theory
• Algebra research group in Koeln
• Algebras and Representations at Tsinghua University