%0 Journal Article
%T Blenders
%A Bruce Reznick
%J Mathematics
%D 2010
%I arXiv
%X A blender is a closed convex cone of real homogeneous polynomials that is also closed under linear changes of variable. Non-trivial blenders only occur in even degree. Examples include the cones of psd forms, sos forms, convex forms and sums of $2u$-th powers of forms of degree $v$. We present some general properties of blenders and analyze the extremal elements of some specific blenders.
%U http://arxiv.org/abs/1008.4533v2