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# Multivariate Vandermonde determinants and toric codes

## MSRI-UP 2009: Coding Theory June 15, 2009 - July 24, 2009

July 24, 2009 (03:30 PM PDT - 04:30 PM PDT)
Speaker(s): Leyda Almodovar, Eugene Cody, Lourdes Morales
Location: MSRI: Simons Auditorium
Video
The minimum distances of toric codes has been studied extensively for various forms of polytopes. In [2], the authors determine bounds for the minimum distance of toric codes for some polytopes P ⊆ R m including the simplices of the form conv(0, e1, . . . , en) using Vandermonde determinants. In this paper, we will derive lower and upper bounds to prove the exact minimum distance of some toric codes associated to the special polytopes P = conv(0, e1, 2e2, 3`e3) ⊂ R 3 .