22 citations · 69 across the 12 of their papers we have counts for
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math.AG2015★ 1 cited
Descent via Tannaka duality
Daniel Schäppi
Given a diagram of schemes, we can ask if a geometric object over one of them can be built from descent data (usually objects of the same type over the various other schemes in the…
math.AG2015
Constructing colimits by gluing vector bundles
Daniel Schäppi
As already observed by Gabriel, coherent sheaves on schemes obtained by gluing affine open subsets can be described by a simple gluing construction. An example due to Ferrand shows…