125 citations
- Czech Academy of Sciences, Institute of MathematicsCZ44 papers
- Bulgarian Academy of SciencesBG32 papers
- Chinese Academy of SciencesCN5 papers
- Institute of Information TechnologiesBG5 papers
- University of Hong KongHK4 papers
- American University in BulgariaBG3 papers
- Laboratoire de Mathématiques Blaise PascalFR3 papers
- Sofia University "St. Kliment Ohridski"BG3 papers
- Albert Einstein College of MedicineUS2 papers
- Centre de Physique ThéoriqueFR2 papers
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- Département mathématiques, informatique, sciences de la donnée et technologies du numériqueFR2 papers
4 papers · 1 filter
Sufficient conditions for a real polynomial to be a sum of squares
Jean B. Lasserre
We provide explicit conditions for a real polynomial of degree 2d to be a sum of squares (s.o.s.), stated only in terms of the coefficients of , i.e. with no lifting. All co…
The abelian fibration on the Hilbert cube of a K3 surface of genus 9
Atanas Iliev, Kristian Ranestad
In this paper we construct an abelian fibration over on the Hilbert cube of the primitive K3 surface of genus 9. After the abelian fibration constructed by Mukai on the…
Pfaffian Lines and Vector Bundles on Fano Threefolds of Genus 8
Atanas Iliev, Laurent Manivel
Let X be a general complex Fano threefold of genus 8. We prove that the moduli space of rank two semistable sheaves on X with Chern numbers c_1=1, c_2=6 and c_3=0 is isomorphic to…
Hurwitz spaces of triple coverings of elliptic curves and moduli spaces of abelian threefolds
Vassil Kanev
We prove that the moduli spaces A_3(D) of polarized abelian threefolds with polarizations of types D=(1,1,2), (1,2,2), (1,1,3) or (1,3,3) are unirational. The result is based on th…