3 citations · 5 across the 6 of their papers we have counts for
7 papers
Ngô support theorem and polarizability of quasi-projective commutative group schemes
Giuseppe Ancona, Dragos Fratila
We prove that any commutative group scheme over an arbitrary base scheme of finite type over a field with connected fibers and admitting a relatively ample line bundle is polarizab…
Algebraic classes in mixed characteristic and André's p-adic periods
Giuseppe Ancona, Dragos Fratila
Motivated by the study of algebraic classes in mixed characteristic we define a countable subalgebra of which we call the algebra of André's -adic periods.…
Homological duality for covering groups of reductive -adic groups
Dragos Fratila, Dipendra Prasad
In this largely expository paper we extend properties of the homological duality functor where is the Hecke algebra of a reductiv…
On the stack of semistable -bundles over an elliptic curve
Dragos Fratila
In a recent paper Ben-Zvi and Nadler proved that the induction map from -bundles of degree 0 to semistable -bundles of degree 0 over an elliptic curve is a small map with Gal…
Addendum to Olivier Schiffmann, "Drinfeld realization of the elliptic Hall algebra"
Dragos Fratila
In \cite{S} O. Schiffmann gave a presentation of the Drinfel'd double of the elliptic Hall algebra which is similar in spirit to Drinfel'd's new realization of quantum affine algeb…
Cusp Eigenforms and the Hall Algebra of an Elliptic Curve
Dragos Fratila
We give an explicit construction of the cusp eigenforms on an elliptic curve defined over a finite field using the theory of Hall algebras and the Langlands correspondence for func…
Crossed Product of Cyclic Groups
Ana-Loredana Agore, Dragos Fratila
All crossed products of two cyclic groups are explicitly described using generators and relations. A necessary and sufficient condition for an extension of a group by a group to be…