3 papers
math.DG2026
Contact Whirl Curves in Sasakian Lorentzian 3-Manifolds
Luis E. Portilla P., Guerrero M. Hector
We introduce and study \emph{contact whirl curves} in three-dimensional Lorentzian contact manifolds, with emphasis on the Sasakian setting. This notion refines the concept of whir…
math.DG2024
Homogeneous G2 and Sasakian instantons on the Stiefel 7-manifold
Andrés J. Moreno, Luis E. Portilla
We study homogeneous instantons on the seven dimensional Stiefel manifold V in the context of and Sasakian geometry. According to the reductive decomposition of V we provide…
math.DG2019
Instantons on Sasakian 7-manifolds
Luis E. Portilla, Henrique N. Sá Earp
We study a natural contact instanton (CI) equation on gauge fields over 7-dimensional Sasakian manifolds, which is closely related both to the transverse Hermitian Yang-Mills (tHYM…