13 citations · 31 across the 12 of their papers we have counts for
Showing 2010Show all
3 papers · 1 filter
math.QA2010
Groupoid Quantales: a non étale setting
Alessandra Palmigiano, Riccardo Re
It is well known that if G is an étale topological groupoid then its topology can be recovered as the sup-lattice generated by G-sets, i.e. by the images of local bisections. This…
math.AG2010
On the maximum rank of a real binary form
Antonio Causa, Riccardo Re
We show that a real homogeneous polynomial f(x,y) with distinct roots and degree d greater or equal than 3 has d real roots if and only if for any (a,b) not equal to (0,0) the poly…
math.AG2010
Multiplications of Maximal Rank in the Cohomology of P^1\times P ^1
Salvatore Giuffrida, Renato Maggioni, Riccardo Re
We show that the linear map defined by multiplication with a general bi-homogeneous form between two bi-graduated pieces of the first cohomology of a nonsingular quadric in the pro…