69 citations · 93 across the 14 of their papers we have counts for
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Erin Militzer, Linda J. Patton, Ilya M. Spitkovsky +1
In their 2008 paper Gau and Wu conjectured that the numerical range of a 4-by-4 nilpotent matrix has at most two flat portions on its boundary. We prove this conjecture, establishi…