activity
20132026
most citedUnramified covers and branes on the Hitchin system

17 citations · 77 across the 18 of their papers we have counts for

collaborators

18 papers

math.AG2026

Quasi-algebraic quantization for the B-twist Langlands TQFT

Eric Yen-Yo Chen, Emilio Franco

This is the first part of a program to construct hyperholomorphic families of boundary conditions for the Kapustin--Witten B-twist of the Langlands QFT, otherwise known as \textit{…

math.AG2024

Fourier-Mukai transforms and normalisation of nodal curves

Emilio Franco, Robert Hanson, Johannes Horn +1

We study Arinkin's Poincaré sheaf on the singular locus of , the compactified Jacobian of rank one torsion-free sheaves on an integral no…

math.AG2023

The Dirac-Higgs complex and categorification of (BBB)-branes

Emilio Franco, Robert Hanson

Let denote the hyperkähler moduli space of -Higgs bundles over a smooth projective curve . In the context of four dimensional supersymmetric…

math.AG2023★ 2 cited

Narasimhan--Ramanan branes and wobbly Higgs bundles

Emilio Franco, Peter B. Gothen, André G. Oliveira +1

Narasimhan--Ramanan branes were introduced by the authors in a previous article. They consist of a family of -branes inside the moduli space of Higgs bundles, and a family of…

math.AG2022

O'Grady spaces and symplectic resolution of moduli spaces of Higgs bundles

Emilio Franco

We describe here a degeneration of the symplectic desingularization of the moduli spaces of topologically trivial and -Higgs bundles over a hyp…

math.AG2022★ 1 cited

Fourier-Mukai transform for fine compactified Prym varieties

Emilio Franco, Robert Hanson, João Ruano

Consider a finite covering of a smooth projective curve by a reduced, projective, planar curve . Associated to two general polarizations on , and , o…

math.AG2021

Degeneration of natural Lagrangians and Prymian integrable systems

Emilio Franco

Starting from an anti-symplectic involution on a K3 surface, one can consider a natural Lagrangian subvariety inside the moduli space of sheaves over the K3. One can also construct…

math.AG2021

Deformation theory of orthogonal and symplectic sheaves

Emilio Franco

We show that the space of first-order deformations of an orthogonal (resp. symplectic) sheaf over a smooth projective scheme is the first hypercohomology space of a complex which i…

math.AG2018★ 17 cited

Unramified covers and branes on the Hitchin system

Emilio Franco, Peter Gothen, André Oliveira +1

We study the locus of the moduli space of Higgs bundles on a curve given by those Higgs bundles obtained by pushforward under an unramified cover. We equip these loci with a hyperh…

math.AG2017★ 10 cited

Branes on the singular locus of the Hitchin system via Borel and other parabolic subgroups

Emilio Franco, Ana Peón-Nieto

We study mirror symmetry on the singular locus of the Hitchin system at two levels. Firstly, by covering it by (supports of) -branes, corresponding to Higgs bundles reducing…

math.AG2017★ 7 cited

Mirror symmetry for Nahm branes

Emilio Franco, Marcos Jardim

The Dirac--Higgs bundle is a hyperholomorphic bundle over the moduli space of stable Higgs bundles of coprime rank and degree. We provide an algebraic generalization to the case of…

math.AG2016★ 11 cited

Involutions of the moduli spaces of -Higgs bundles over elliptic curves

Indranil Biswas, Luis Angel Calvo, Emilio Franco +1

We present a systematic study of involutions on the moduli space of -Higgs bundles over an elliptic curve , where is complex reductive affine algebraic group. The fixed p…

math.AG2016★ 4 cited

Brane involutions on irreducible holomorphic symplectic manifolds

Emilio Franco, Marcos Jardim, Grégoire Menet

In the context of irreducible holomorphic symplectic manifolds, we say that (anti)holomorphic (anti)symplectic involutions are brane involutions since their fixed point locus is a…

math.AG2016★ 2 cited

Higgs bundles over elliptic curves for real groups

Emilio Franco, Óscar García-Prada, P. E. Newstead

We study topologically trivial -Higgs bundles over an elliptic curve when the structure group is a connected real form of a complex semisimple Lie group …

math.AG2016

Moduli spaces of -modules on abelian varieties

Emilio Franco, Pietro Tortella

We study the moduli space of semistable -modules of vanishing Chern classes over an abelian variety , where belongs to a certain subclass of -alge…

math.AG2015★ 12 cited

Branes in the moduli space of framed instantons

Emilio Franco, Marcos Jardim, Simone Marchesi

In the physicist's language, a brane in a hyperkahler manifold is a submanifold which is either complex or lagrangian with respect to three Kahler structures of the ambient manif…

math.AG2013★ 8 cited

Higgs bundles over elliptic curves for complex reductive Lie groups

Emilio Franco, Oscar Garcia-Prada, P. E. Newstead

We study Higgs bundles over an elliptic curve with complex reductive structure group, describing the (normalization of) its moduli spaces and the associated Hitchin fibration. The…

math.AG2013★ 3 cited

Higgs bundles over elliptic curves

Emilio Franco, Oscar Garcia-Prada, P. E. Newstead

In this paper we study -Higgs bundles over an elliptic curve when the structure group is a classical complex reductive Lie group. Modifying the notion of family, we define a…