Nonnegative Matrix Theory: Generalizations and Applications December 1 to December 5, 2008 American Institute of Mathematics, Palo Alto, CA Organizers: Judith McDonald, Hans Schneider, and Michael Tsatsomeros Description: This workshop, sponsored by AIM and the NSF, will be devoted to the study of nonnegative matrices and their generalizations. The goal is to make progress both in specific areas and on the global themes that unify this subject. Deadline: August 1, 2008 Details: http://aimath.org/ARCC/workshops/nonnegmatrix.html