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Hello, The following event may be of interest to you: Counting Lattice Points in Triangles and the "Fibonacci Staircase" Thursday, October 10, 2013 A lecture byDaniel Cristofaro-Gardiner The Institute for Advanced StudyThe "Ehrhart polynomial" is an important tool for counting lattice points in triangles and other polygons. An Ehrhart polynomial has a "period", and the relationship between the coordinates of the vertices of a polygon and the period of its Ehrhart polynomial can be quite mysterious. Daniel Cristofaro-Gardiner will present recent joint work with Aaron Kleinman relating the periods of the Ehrhart polynomials of some simple triangles with recursive sequences like the Fibonacci numbers and the Pell numbers. Interestingly, this is linked to a curious staircase arising in a special geometry called "symplectic" geometry. Location: Hegeman 204 Sponsor: Mathematics Program Contact: Greg Landweber. E-mail: [email protected] If you would like to see more events please visit the following URL: http://www.bard.edu/news/events/