4 papers
On the stability of Einstein metrics carrying a special twisted spinor
Diego Artacho
We prove linear semi-stability for a large class of Einstein metrics of non-positive scalar curvature. More precisely, we show that any Einstein -manifold with non-positive scal…
Killing Mean Curvature Solitons from Riemannian Submersions
Diego Artacho, Marie-Amélie Lawn, Miguel Ortega
We present a new general construction of examples of mean curvature solitons on manifolds admitting a nowhere-vanishing Killing vector field. Using Riemannian submersion techniques…
Invariant Spinors on Flag Manifolds
Diego Artacho, Uwe Semmelmann
In this note, we characterise the existence of non-trivial invariant spinors on maximal flag manifolds associated to complex simple Lie algebras. This characterisation is based on…
The Geometry of Generalised Spin Spinors on Projective Spaces
Diego Artacho, Jordan Hofmann
In this paper, we adapt the characterisation of the spin representation via exterior forms to the generalised spin context. We find new invariant spin spinors on the projec…