We introduce a novel take on sum-of-squares that is ableto reason with complex numbers and still make use of polynomial inequalities.This proof system might be of independent interest since itallows to represent multivalued domains both with Boolean and Fourierencoding. We show degree and size lower bounds in this system for anatural generalization of knapsack: the vanishing sums of roots of unity.These lower bounds naturally apply to polynomial calculus as-well.

On vanishing sums of roots of unity in polynomial calculus and sum-of-squares / Bonacina, Ilario; Galesi, Nicola; Lauria, Massimo. - In: COMPUTATIONAL COMPLEXITY. - ISSN 1016-3328. - 32:2(2023), pp. 1-45. [10.1007/s00037-023-00242-z]

On vanishing sums of roots of unity in polynomial calculus and sum-of-squares

Ilario Bonacina
;
Nicola Galesi
;
Massimo Lauria
2023

Abstract

We introduce a novel take on sum-of-squares that is ableto reason with complex numbers and still make use of polynomial inequalities.This proof system might be of independent interest since itallows to represent multivalued domains both with Boolean and Fourierencoding. We show degree and size lower bounds in this system for anatural generalization of knapsack: the vanishing sums of roots of unity.These lower bounds naturally apply to polynomial calculus as-well.
2023
polynomial calculus; sum-of-squares; roots of unity; knapsack
01 Pubblicazione su rivista::01a Articolo in rivista
On vanishing sums of roots of unity in polynomial calculus and sum-of-squares / Bonacina, Ilario; Galesi, Nicola; Lauria, Massimo. - In: COMPUTATIONAL COMPLEXITY. - ISSN 1016-3328. - 32:2(2023), pp. 1-45. [10.1007/s00037-023-00242-z]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1701927
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