16 citations · 35 across the 5 of their papers we have counts for
5 papers
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…
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…
New G2 holonomy metrics, D6 branes with inherent U(1)xU(1) isometry and gamma-deformations
O. P. Santillan
It is found the most general local form of the 11-dimensional supergravity backgrounds which, by reduction along one isometry, give rise to IIA supergravity solutions with a RR fie…
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…