2 papers
math.AG2015
Extreme positive ternary sextics
Aaron Kunert, Claus Scheiderer
We study nonnegative (psd) real sextic forms that are not sums of squares (sos). Such a form has at most ten real zeros. We give a complete and explicit characteri…
math.AG2011
Facial structure of the cone of nonnegative ternary quartics
Aaron Kunert
In this work we will discuss the facial structure of the cone of nonnegative ternary quartics with real coefficients. We will establish an equivalence relation on the set of all fa…