4 citations · 4 across the 1 of their papers we have counts for
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New Spin(7) holonomy metrics admiting G2 holonomy reductions and M-theory/IIA dualities
S. Salur, O. Santillan
IAs is well known, when D6 branes wrap a special lagrangian cycle on a non compact CY 3-fold in such a way that the internal string frame metric is Kahler there exists a dual descr…
Mirror symmetry aspects for compact G_2 manifolds
Sema Salur, Osvaldo Santillan
The present paper deals with mirror symmetry aspects of compact ``barely'' manifolds, that is, manifolds of the form (CY. We propose that the…
A Kahler-Einstein inspired anzatz for Spin(7) holonomy metrics and its solution
O. P. Santillan
We construct propose an anzatz for Spin(7) metrics as an R-bundle over closed G2 structures. These G2 structures are R3 bundles over 4-dimensional compact quaternion Kahler spaces.…
Toric G_2 and Spin(7) holonomy spaces from gravitational instantons and other examples
Gaston Giribet, Osvaldo P. Santillan
Non-compact G_2 holonomy metrics that arise from a T^2 bundle over a hyper-Kahler space are discussed. These are one parameter deformations of the metrics studied by Gibbons, Lu, P…
Manifolds with reduced holonomy in superstring theories
O. P. Santillan
The main results presented in this dissertation are the following - We have shown that in weak hyperkahler torsion structures are the same that hypercomplex structures and th…
D-instanton sums for matter hypermultiplets
Sergei V. Ketov, Osvaldo P. Santillan, Andrei G. Zorin
We calculate some non-perturbative (D-instanton) quantum corrections to the moduli space metric of several (n>1) identical matter hypermultiplets for the type-IIA superstrings comp…