This volume presents the proceedings of a conference on differential geometry held in honour of the 60th birthday of A M Naveira. The meeting brought together distinguished researchers from a variety of areas in Riemannian geometry. The topics include: geometry of the curvature tensor, variational problems for geometric functionals such as Willmore–Chen tension, volume and energy of foliations and vector fields, and energy of maps. Many papers concern special submanifolds in Riemannian and Lorentzian manifolds, such as those with constant mean (scalar, Gauss, etc.) curvature and those with finite total curvature.Contents: Hypersurfaces with Constant Higher Order Mean Curvature in Euclidean Space (L J Alías & J M Malacarne)Uniqueness of Spacelike Hypersurfaces with Constant Mean Curvature in Generalized Robertson–Walker Spacetimes (L J Alías & S Montiel)Critical Points of Willmore–Chen Tension Functionals (M Barros)Some Generalizations of Twistor Spaces (D E Blair)The Intrinsic Torsion of SU(3) and G2 Structures (S Chiossi & S Salamon)H-Hypersurfaces with Finite Total Curvature (M P do Carmo)Volume and Energy of Vector Fields on Spheres. A Survey (O Gil-Medrano)Spacelike Jordan Osserman Algebraic Curvature Tensors in the Higher Signature Setting (P B Gilkey & R Ivanova)The Gauss Map of Minimal Surfaces (A Ros)On Minimal Growth in Group Theory and Riemannian Geometry (A Sambusetti)Deformation of Lipschitz Riemannian Metrics in the Direction of their Ricci Curvature (M Simon)and other papersReadership: Graduate students and researchers in differential geometry.Key Features:This is the first book that is devoted to Silicon RF Power MOSFETsIt can be used as a reference by practicing engineers in the telecommunications industry and as a teaching guide for RF courses at universities