0000000000592608

AUTHOR

Bini G

showing 4 related works from this author

The Euler characteristics of $mathcal H_g,n$

2007

In this short note, we compute the orbifold and the ordinary Euler characteristic of Hg,n, the moduli space of pointed hyper- elliptic curves. As a by-product, we obtain an identity involving hypergeometric functions.

euler characteristic hyperelliptic curveSettore MAT/03 - Geometria
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A combinatorial algorithm related to the geometry of the moduli space of pointed curves

2002

As pointed out in Arbarello and Cornalba ( J. Alg. Geom. 5 (1996), 705–749), a theorem due to Di Francesco, Itzykson, and Zuber (see Di Francesco, Itzykson, and Zuber, Commun. Math. Phys. 151 (1993), 193–219) should yield new relations among cohomology classes of the moduli space of pointed curves. The coefficients appearing in these new relations can be determined by the algorithm we introduce in this paper.

Settore MAT/02 - AlgebraSettore MAT/03 - Geometriarational cohomology class moduli spaces of pointed curvesSchur Q-polynomials; projective representations; moduli space of curves
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On the automorphism group of some K3 surfaces with Picard number two

2005

We investigate properties of some K3 surfaces with Picard number two. In particular, we show that several of them have an infinite cyclic group of automorphisms. We de- scribe projective models of a few of these surfaces.

Settore MAT/03 - Geometriaautomorphism K3 surface
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Calculating cohomology groups of $overline M_0,n(mathbb P^r,d)$

2003

Here we investigate the rational cohomology of the moduli space ℳ̄0,n (ℙr,d) of degree d stable maps from n-pointed rational curves to ℙr. We obtain partial results for small values of d with an inductive method inspired by a paper of Enrico Arbarello and Maurizio Cornalba.

rational cohomology moduli space of stable mapsSettore MAT/03 - Geometria
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