Fundamentals of Differential Geometry

New edition of a successful Serge Lang title Written in the authors unique and engaging style, with clear and elegant proofs Covers the fundamentals of differential geometry, differential topology, and differential equations Includes new chapters on Jacobi lifts, tensorial splitting of the double tangent bundle, curvature and the variation formula, and an example of semi-negative curvature New chapters, sections, examples, and exercises have been added