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Showing 2012 · math.AGShow all
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math.AG2012
Experiments with the transcendental Brauer-Manin obstruction
Andreas-Stephan Elsenhans, Jörg Jahnel
We report on our experiments and theoretical investigations concerning weak approximation and the transcendental Brauer-Manin obstruction for special Kummer surfaces.
math.AG2012
On the factor alpha in Peyre's constant
Ulrich Derenthal, Andreas-Stephan Elsenhans, Jörg Jahnel
For an arbitrary del Pezzo surface S, we compute alpha(S), which is the volume of a certain polytope in the dual of the effective cone of S, using Magma and Polymake. The constant…