On the rationality of the period mapping
On the Real Points of an Arithmetic Quotient of a Bounded Symmetrie Domain.
On the Real Spectrum of a Ring of Global Analytic Functions
On the real X -ranks of points of P n (R) with respect to a real variety X ⊂ P n
Let X ⊂ Pn be an integral and non-degenerate m-dimensional variety defined over R. For any P ∈ Pn(R) the real X-rank r x,R(P) is the minimal cardinality of S ⊂ X(R) such that P ∈ . Here we extend to the real case an upper bound for the X-rank due to Landsberg and Teitler.
On the reducibility of moduli spaces of stable 2-bundles over an elliptic surface.
On the reducibility type of trinomials
On the reduction of abelian varieties
On the reduction of the Hilbert-Blumenthal-moduli scheme with ...(p)-level structure.
On the reflection representation in Springer's theory.
On the relative adjunction mapping.
On the relative Nash approximation of analytic maps.
On the representations of the fundamental group
On the Resolution of Cusp Singularities and the Shintani Decomposition in Totally Real Cubic Number Fields.
On the Riemann-Roch theorem for orders in the ring of valuation vectors of a function field.
On the secant varieties to the osculating variety of a Veronese surface
In this paper we study the k-th osculating variety of the order d Veronese embedding of P n. In particular, for k=n=2 we show that the corresponding secant varieties have the expected dimension except in one case.
On the second exterior power of tangent bundles of threefolds
On the second sectional geometric genus of quasi-polarized manifolds.
On the sectional irregularity of congruences.
On the semi-simplicity of Galois actions
On the seperation of basic semialgebraic sets by polynomials.