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math.CO2008
Detecting integral polyhedral functions
Kiran S. Kedlaya, Philip Tynan
We study the class of real-valued functions on convex subsets of R^n which are computed by the maximum of finitely many affine functionals with integer slopes. We prove several res…
math.GR2008
Generalizations of product-free subsets
Kiran S. Kedlaya, Xuancheng Shao
For any group G of order n, a subset A of G is said to be product-free if there is no solution of the equation ab=c with a,b,c in A. Previous results of Gowers showed that the size…