Geometrical Study of the Cone of Sums of Squares plus Sums of Nonnegative Circuits

Mareike Dressler, Salma Kuhlmann, Moritz Schick

In this article, we combine sums of squares (SOS) and sums of nonnegative circuit (SONC) forms, two independent nonnegativity certificates for real homogeneous polynomials. We cons…