79 citations · 176 across the 18 of their papers we have counts for
12 papers · 1 filter
Exact -structures on unimodular Lie algebras
Marisa Fernández, Anna Fino, Alberto Raffero
We consider seven-dimensional unimodular Lie algebras admitting exact -structures, focusing our attention on those with vanishing third Betti number $b_3(\mathf…
A compact -calibrated manifold with first Betti number
Marisa Fernández, Anna Fino, Alexei Kovalev +1
We construct a compact formal 7-manifold with a closed -structure and with first Betti number , which does not admit any torsion-free -structure, that is, it does…
Homotopic properties of Kähler orbifolds
Giovanni Bazzoni, Indranil Biswas, Marisa Fernández +2
We prove the formality and the evenness of odd-degree Betti numbers for compact Kähler orbifolds, by adapting the classical proofs for Kähler manifolds. As a consequence, we obtain…
Locally conformal calibrated -manifolds
Marisa Fernández, Anna Fino, Alberto Raffero
We study conditions for which the mapping torus of a 6-manifold endowed with an -structure is a locally conformal calibrated -manifold, that is, a 7-manifold endowed wi…
The quaternionic Heisenberg group and Heterotic String Solutions with non-constant dilaton in dimensions 7 and 5
Marisa Fernandez, Stefan Ivanov, Luis Ugarte +1
New smooth solutions of the Strominger system with non vanishing flux, non-trivial instanton and non-constant dilaton based on the quaternionic Heisenberg group are constructed. We…
Non-Kaehler Heterotic String Solutions with non-zero fluxes and non-constant dilaton
Marisa Fernandez, Stefan Ivanov, Luis Ugarte +1
Conformally compact and complete smooth solutions to the Strominger system with non vanishing flux, non-trivial instanton and non-constant dilaton using the first Pontrjagin form o…