An operator-valued Positivstellensatz equates positivity on matrix convex sets to a weighted sum-of-squares form, enabling an explicit sum-of-squares factorization for positive trigonometric polynomials on free products of finite abelian groups.
Positivity and sums of squares , Graduate Texts in Mathematics 303
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
fields
math.FA 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
citing papers explorer
-
Operator-Valued Positivstellens\"atze on Matrix Convex Sets and Free Products of Finite Abelian Groups
An operator-valued Positivstellensatz equates positivity on matrix convex sets to a weighted sum-of-squares form, enabling an explicit sum-of-squares factorization for positive trigonometric polynomials on free products of finite abelian groups.