@inbook{e9b671d3663740e2966512a229c1805c,

title = "Blenders",

abstract = "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.",

author = "Bruce Reznick",

year = "2011",

doi = "10.1007/978-3-0348-0142-3_19",

language = "English (US)",

series = "Trends Math.",

publisher = "Birkh{\"a}user/Springer, Cham",

pages = "345--373",

booktitle = "Notions of positivity and the geometry of polynomials",

}