activity
20202026
most citedDegree bounds for Putinar's Positivstellensatz on the hypercube

15 citations · 32 across the 7 of their papers we have counts for

collaborators

7 papers

math.AG2026

A note on o-minimal tropicalizations

Lorenzo Baldi, Máté L. Telek

In this note, we provide several equivalent descriptions of the tropicalization of definable sets in a polynomially bounded o-minimal expansion of a real closed field. We show that…

math.AG2024

An Effective Positivstellensatz over the Rational Numbers for Finite Semialgebraic Sets

Lorenzo Baldi, Teresa Krick, Bernard Mourrain

We study the problem of representing multivariate polynomials with rational coefficients, which are nonnegative and strictly positive on finite semialgebraic sets, using rational s…

math.AG2023★ 15 cited

Degree bounds for Putinar's Positivstellensatz on the hypercube

Lorenzo Baldi, Lucas Slot

The Positivstellensätze of Putinar and Schmüdgen show that any polynomial positive on a compact semialgebraic set can be represented using sums of squares. Recently, there has…

math.AC2022★ 9 cited

On Łojasiewicz Inequalities and the Effective Putinar's Positivstellensatz

Lorenzo Baldi, Bernard Mourrain, Adam Parusinski

The representation of positive polynomials on a semi-algebraic set in terms of sums of squares is a central question in real algebraic geometry, which the Positivstellensatz answer…

math.AC2021★ 2 cited

On the Effective Putinar's Positivstellensatz and Moment Approximation

Lorenzo Baldi, Bernard Mourrain

We analyse the representation of positive polynomials in terms of Sums of Squares. We provide a quantitative version of Putinar's Positivstellensatz over a compact basic semialgebr…

math.AC2021★ 3 cited

Computing real radicals by moment optimization

Lorenzo Baldi, Bernard Mourrain

We present a new algorithm for computing the real radical of an ideal and, more generally, the-radical of, which is based on convex moment optimization. A truncated positive generi…

math.AC2020★ 3 cited

Exact Moment Representation in Polynomial Optimization

Lorenzo Baldi, Bernard Mourrain

We investigate the problem of representing moment sequences by measures in the context ofPolynomial Optimization Problems, that consist in finding the infimum of a real polynomial…