3 citations · 3 across the 3 of their papers we have counts for
4 papers
Locally trivial families of hyperelliptic curves: the geometry of the Weierstrass scheme
Remke Kloosterman, Orsola Tommasi
In this paper we describe some geometrical properties of the Weierstrass scheme of locally trivial hyperelliptic fibrations.
Rational cohomology of the moduli space of genus 4 curves
Orsola Tommasi
We prove that the Poincare' polynomial of the moduli space of smooth genus 4 curves is 1+t^2+t^4+t^5. We show this by producing a stratification of the space, such that all strata…
Some remarks on varieties with degenerate Gauss image
Emilia Mezzetti, Orsola Tommasi
We consider projective varieties with degenerate Gauss image whose focal hypersurfaces are non-reduced schemes. Examples of this situation are provided by the secant varieties of S…
On projective varieties of dimension n+k covered by k-spaces
Emilia Mezzetti, Orsola Tommasi
We study families of linear spaces in projective space whose union is a proper subvariety X of the expected dimension. We establish relations between configurations of focal points…