384 citations · 1.3k across the 35 of their papers we have counts for
37 papers
Some Identities For Periods of Hulek-Verrill Threefolds
Xenia de la Ossa, Mohamed Elmi
We study the Hulek--Verrill families of Calabi--Yau threefolds. They are birationally equivalent to fibred products of elliptic surfaces, so we expect to be able to compute periods…
Quantum aspects of heterotic systems
Xenia de la Ossa, Magdalena Larfors, Matthew Magill +1
Compactifications of the heterotic string, to first order in the expansion, on manifolds with integrable structure give rise to three-dimensional supergra…
-algebras and strings with torsion
Xenia de la Ossa, Mateo Galdeano, Enrico Marchetto
We explore the connection between super -algebras (-algebras) and -structures with torsion. The former are realised as symmetry algebras of s…
Classical Weight-Four L-value Ratios as Sums of Calabi--Yau Invariants
Philip Candelas, Xenia de la Ossa, Joseph McGovern
We revisit the series solutions of the attractor equations of 4d N=2 supergravities obtained by Calabi--Yau compactifications previously studied in Candelas, Kuusela, and McGovern…
Local Zeta Functions of Multiparameter Calabi-Yau Threefolds from the Picard-Fuchs Equations
Philip Candelas, Xenia de la Ossa, Pyry Kuusela
The deformation approach of arXiv:2104.07816 for computing zeta functions of one-parameter Calabi-Yau threefolds is generalised to cover also multiparameter manifolds. Consideratio…
Flux Vacua and Modularity for Symmetric Calabi-Yau Manifolds
Philip Candelas, Xenia de la Ossa, Pyry Kuusela +1
We find continuous families of supersymmetric flux vacua in IIB Calabi-Yau compactifications for multiparameter manifolds with an appropriate symmetry. We argue, sup…