Riemannian Extensions and Curvature Operators Esteban Calviño Louzao Joint work with M. E. Vázquez Abal and R. Vázquez Lorenzo

Curvature Operators

Four-dimensional Osserman Metrics

Four-dimensional Walker Metrics

A special class of Walker metrics

Nilpotent Osserman Metrics

Type II Non-Nilpotent Osserman Metrics

Ivanov-Petrova metrics

Locally Homogeneous Affine Surfaces

Riemannian Extensions and Curvature Operators Esteban Calviño Louzao Joint work with M. E. Vázquez Abal and R. Vázquez Lorenzo