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math.AG2005
A quantitative sharpening of Moriwaki's arithmetic Bogomolov inequality
Niko Naumann
A. Moriwaki proved the following arithmetic analogue of the Bogomolov unstability theorem. If a torsion-free hermitian coherent sheaf on an arithmetic surface has negative discrimi…
math.AG2005★ 3 cited
On the Structure of the Weil Restriction of Abelian Varieties
Claus Diem, N. Naumann
We give a description of endomorphism rings of Weil restrictions of abelian varieties with respect to finite Galois extensions. The results are applied to study the isogeny decompo…
math.AG2004
Algebraic independence in the Grothendieck ring of varieties
N. Naumann
We give sufficient cohomological criteria for the classes of given varieties over a field to be algebraically independent in the Grothendieck ring of varieties over and con…