*Riemannian Geometry*, Manfredo Perdigao Do Carmo **(Required text)**,

*A Comprehensive Introduction to Differential Geometry*, Michael Spivak,

*Metric Spaces of Non-Positive Curvature*, Martin R. Bridson and André Haefliger,

*Foundations of Differentiable Manifolds and Lie Groups*, Frank Warner.

Problem set 2 (revised with some typos fixed).

- Two corrections from class to notes:

corrected sectional curvature of SO(3) (lecture 14, p.65),

corrected solution to Ricci flow on Einstein manifold (lecture 15, p.67).

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