Mathematics – Combinatorics
Scientific paper
2005-06-23
Math. Intelligencer 31 (2009), no. 1, 9--17.
Mathematics
Combinatorics
Small revisions, added references
Scientific paper
We discuss and give elementary proofs of results of Brion and of
Lawrence-Varchenko on the lattice-point enumerator generating functions for
polytopes and cones. This largely expository note contains a new proof of
Brion's Formula using irrational decompositions, and a generalization of the
Lawrence-Varchenko formula.
Beck Matthias
Haase Christian
Sottile Frank
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