8 papers · 1 filter
Z/rZ-equivariant covers of P^1 with moving ramification
Carl Lian, Riccardo Moschetti
Let X -> P^1 be a general cyclic cover. We give a simple formula for the number of equivariant meromorphic functions on X subject to ramification conditions at variable points. Thi…
Hyperelliptic odd coverings
Riccardo Moschetti, Gian Pietro Pirola
We investigate a class of odd (ramification) coverings where is hyperelliptic, its Weierstrass points maps to one fixed point of and the cov…
Monodromy of projections of hypersurfaces
Maria Gioia Cifani, Alice Cuzzucoli, Riccardo Moschetti
Let be an irreducible, reduced complex projective hypersurface of degree . A point not contained in is called uniform if the monodromy group of the projection of …
Alternating Catalan numbers and curves with triple ramification
Gavril Farkas, Riccardo Moschetti, Juan Carlos Naranjo +1
It is known that the monodromy group of each cover of a general curve of genus g>3 equals either the symmetric or the alternating group. The classical Catalan numbers count the min…
Semiorthogonal Decompositions on Enriques Surfaces and Derived Torelli Theorem
Riccardo Moschetti, Giorgio Scattareggia, Sofia Tirabassi
We show that the general Enriques surface can be recovered from the Kuznetsov component of its bounded derived category of coherent sheaves.
A descent criterion for equivalences between equivariant derived categories
Francesco Amodeo, Riccardo Moschetti, Mattia Ornaghi
We investigate equivalences between the categories of perfects complexes of the quotients of two smooth projective schemes by the action of a finite group. As a result we give a ne…