news
recent papers
- (with Steven Sam and Kevin Woods)
Maximal periods of (Ehrhart) quasi-polynomials,
Journal of Combinatorial Theory Series A 115, no. 3 (2008), 517-525.
- (with Christian Haase and Asia Matthews) Dedekind-Carlitz polynomials as lattice-point enumerators in rational polyhedra,
Mathematische Annalen 341, no. 4 (2008), 945-961.
- (with Christian Haase and Frank Sottile)
,
Mathematical Intelligencer 31, no. 1 (2009), 9-17.
- (with Mary Halloran)
Finite trigonometric character sums via discrete Fourier analysis,
to appear in International Journal of Number Theory.
- (with Alan Stapledon)
On the log-concavity of Hilbert series of Veronese subrings and Ehrhart series,
to appear in Mathematische Zeitschrift.
- (with Christian Haase and Steven Sam)
Grid graphs, Gorenstein polytopes, and domino stackings,
to appear in Graphs and Combinatorics.
- (with Federico Ardila, Serkan Hosten, Julian Pfeifle, and Kim Seashore)
Root polytopes and growth series of root lattices
- (with Sinai Robins and Steven Sam)
Positivity theorems for solid-angle polynomials
- (with Ira Gessel, Sunyoung Lee, and Carla Savage)
Symmetrically constrained compositions
fall 09 course
upcoming activities
- algebra-geometry-combinatorics seminar, sf state (fridays)
- formal power series and algebraic combinatorics, research institute for symbolic computation, hagenberg, austria (july 20-24)
- marin math circle (october 21)
- workshop dedekind sums in geometry, topology, and arithmetic, banff research station, canada (october 11-16)
- formal power series and algebraic combinatorics, san francisco (tentatively july 19-23, 2010)
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