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比利时vs摩洛哥足彩
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比利时vs摩洛哥足彩
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university of california san diego
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2009 southern california optimization day
martin harrison
ucsb
minimal sums of squares in a free *-algebra
abstract:
in this talk, i discuss the reduction of the number of squares needed to express a sum of squares in the free *-algebra r. i will give examples of sums which are irreducible in this sense, and prove bounds on the minimal number of terms needed to express an arbitrary sum of squares of a given degree in a given number of variables
march 19, 2009
11:00 am
ap&m 6402
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