2 papers
math.GR2026
Automorphisms of valued Hahn groups
Salma Kuhlmann, Michele Serra
Hahn groups endowed with the canonical valuation play a fundamental role in the classification of valued abelian groups. In this paper we study the group of valuation (respectively…
math.AG2024
Geometrical Study of the Cone of Sums of Squares plus Sums of Nonnegative Circuits
Mareike Dressler, Salma Kuhlmann, Moritz Schick
In this article, we combine sums of squares (SOS) and sums of nonnegative circuit (SONC) forms, two independent nonnegativity certificates for real homogeneous polynomials. We cons…