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Now showing items 11-15 of 15
Poincaré families and automorphisms of principal bundles on a curve (Pre-published version)
(Elsevier, 2009)
Let C be a smooth projective curve, and let G be a reductive algebraic group. We give a necessary condition, in terms of automorphism groups of principal G-bundles on C, for the existence of Poincaré families parameterized ...
Ireland's participation in the 50th international mathematical olympiad
(Irish Mathematical Society, 2009)
The 50th International Mathematical Olympiad (IMO) took place in Bremen (Germany) from 12th July until 22nd July 2009. With 565 participants (59 of whom were girls) from 104 countries, this was the IMO with the largest ...
Moduli schemes of generically simple Azumaya modules
(Documenta Mathematica, 2005)
Let A be an Azumaya algebra over a smooth projective variety X or more generally, a torsion free coherent sheaf of algebras
over X whose generic fiber is a central simple algebra. We show that generically simple torsion ...
Some moduli stacks of symplectic bundles on a curve are rational (Pre-published version)
(Elsevier, 2008)
Let C be a smooth projective curve of genus g ≥ 2 over a field k. Given a line bundle L on C, let Sympl2n,L be the moduli stack of vector bundles E of rank 2n on C endowed with a nowhere degenerate symplectic form b : E ⊗ ...
Elliptic curves – an introduction
(Irish Mathematical Society, 2007)