activity
19992014
most citedAmple families, multihomogeneous spectra, and algebraization of formal schemes

8 citations · 22 across the 24 of their papers we have counts for

collaborators

25 papers

math.AG2014

Brauer groups for quiver moduli

Markus Reineke, Stefan Schroeer

We compute the Brauer groups of several moduli spaces of stable quiver representations.

math.AG2014★ 2 cited

Vector bundles on proper toric 3-folds and certain other schemes

Markus Perling, Stefan Schroeer

We show that a proper algebraic n-dimensional scheme Y admits nontrivial vector bundles of rank n, even if Y is non-projective, provided that there is a modification containing a p…

math.AT2013

Pathologies in cohomology of non-paracompact Hausdorff spaces

Stefan Schroeer

We construct a non-paracompact Hausdorff space for which Cech cohomology does not coincide with sheaf cohomology. Moreover, the sheaf of continuous real-valued functions is neither…

math.AG2010

Periods of Enriques Manifolds

Keiji Oguiso, Stefan Schroeer

Enriques manifolds are complex spaces whose universal coverings are hyperkaehler manifolds. We introduce period domains for Enriques manifolds, establish a local Torelli theorem, a…

math.AG2009

On the ring of unipotent vector bundles on elliptic curves in positive characteristics

Stefan Schroeer

Using Fourier-Mukai transformations, we prove some results about the ring of unipotent vector bundles on elliptic curves in positive characteristics. This ring was determined by At…

math.AG2008★ 2 cited

The Neron model over the Igusa curves

Christian Liedtke, Stefan Schroeer

We analyze the geometry of rational p-division points in degenerating families of elliptic curves in characteristic p. We classify the possible Kodaira symbols and determine for th…