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20142020
most citedDefinite Determinantal Representations of Ternary Hyperbolic Forms

3 citations · 7 across the 4 of their papers we have counts for

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Showing 2017Show all

2 papers · 1 filter

math.AG2017

Positive Semidefinite Univariate Matrix Polynomials

Christoph Hanselka, Rainer Sinn

We study sum-of-squares representations of symmetric univariate real matrix polynomials that are positive semidefinite along the real line. We give a new proof of the fact that eve…

math.RA2017★ 3 cited

Skolem-Noether algebras

Matej Brešar, Christoph Hanselka, Igor Klep +1

An algebra is called a Skolem-Noether algebra (SN algebra for short) if for every central simple algebra , every homomorphism extends to an inner automorph…