Topological and geometric combinatorics. Abstracts from the workshop held February 6th-February 12th, 2011. (Q433874)

Summary: The 2011 Oberwolfach meeting ``Topological and Geometric Combinatorics'' was organized by Anders Björner (Stockholm), Gil Kalai (Jerusalem), Isabella Novik (Seattle), and Günter M. Ziegler (Berlin). It covered a wide variety of aspects of Discrete Geometry, Topological Combinatorics, and Geometric Topology. Some of the highlights of the conference included (1) counterexamples to the Hirsch conjecture, (2) the latest results around the colored Tverberg theorem, and (3) recent developments on the complexity of the simplex algorithm.