 CARMA COLLOQUIUM
 Speaker: Armin Staub, Tulane University
 Title: On infinite logconcavity
 Location: Room V129, Mathematics Building (Callaghan Campus) The University of Newcastle
 Time and Date: 4:00 pm, Thu, 14^{th} Oct 2010
 Abstract:
The logconcavity of a sequence is a much studied concept in combinatorics with surprising links to many other mathematical fields. In this talk we discuss the stronger but much less studied notion of mfold logconcavity which has recently recieved some attention after Boros and Moll conjectured that a "remarkable" sequence encountered in the integration of an inverse cubic is infinitely logconcave. In particular, we report on a recent result of Branden which implies infinite logconcavity of the binomial coefficients and other new developments. Examples and conjectures are promised. A PDF of the talk is available here.
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