COLLOQUIUM
3:00 p.m., Friday (November 2, 2007)
Math Annex 1100
Don Saari
UC Irvine
Mathematical complexity of decisions and multiscale analysis
Abstract: Group decisions are being constantly made; e.g., the US is in the midst of still another election season. Both the US and Canada rely on the plurality vote; can this decision approach mean that the outcome need not reflect the views of the voters? Viewing this problem more generally, I will describe the mathematical complexity of finding decision rules that do reflect the views of the voters; the analysis involves notions ranging from chaotic behavior to algebraic orbits. Surprisingly, many of the same notions and complexities extend to raise serious concerns about multiscale analysis, which is a topic of great interest in the physical sciences and engineering.
Refreshments will be served at 2:45 p.m. (Math Lounge, MATX 1115).
