After successfully organizing a BIRS workshop on "Invariants of Incidence Matrices" (http://www.birs.ca/birspages.php?task=displayevent&event_id=09w5071) with Chris Godsil and Peter Sin in 2009, Professor Xiang is teaming up with Saieed Akbari, Richard Brualdi, Willem Haemers, Hadi Kharaghani, and Behruz Tayfeh-Rezaie to organize another BIRS workshop on linear algebraic techniques in combinatorics/graph theory (http://www.birs.ca/birspages.php?task=displayevent&event_id=11w5033) during Jan. 30--Feb. 4, 2011, in Banff, Canada.

The main aim in organizing the workshop is to bring together the large and diverse collection of researchers who have made substantial contributions using linear algebra techniques in combinatorics and graph theory, or using combinatorial and graph-theoretic ideas to investigate matrices. It is expected that there will be considerable cross-fertilization of ideas leading to people learning new problems and new applications of linear algebra techniques, and that this will lead to new collaborations and breakthroughs.