5 papers
Kenmotsu manifolds and spin-c Killing spinors
José Luis Carmona Jiménez, Alejandro Gil-García, C. S. Shahbazi
Using the theory of complex spinorial forms, we prove that an odd-dimensional Riemannian manifold admits a pure spin-c Killing spinor with an imaginary Killing function if and…
On generalized imaginary -Killing spinors
José Luis Carmona Jiménez
A non-trivial spinor field is called a generalized imaginary -Killing spinor if for all vector fields , where is a real…
Classification of -modes for neutron stars with a strong transition: Novel universal relation including slow stable hybrid stars
M. C. Rodriguez, José C. Jiménez, Ignacio F. Ranea-Sandoval
We investigate the behavior of the non-radial gravity-pulsation discontinuity -mode in neutron stars with a strong first-order phase transition which give rise to hybrid-star co…
On Weyl structures reducible in the direction of the Lee form
José Luis Carmona Jiménez
A Weyl structure on a Riemannian manifold is a torsion-free linear connection such that there is a -form (called the Lee form) satisfying $\nabla g = 2\, θ\…
Canonical Reductive Decomposition of Extrinsic Homogeneous Submanifolds
José Luis Carmona Jiménez, Marco Castrillón López
Let be a homogeneous Riemannian manifold. Given a Lie subgroup and a reductive decomposition of the homogeneous str…