Manifolds Done Right -- Bhargav Bhatt, November 29, 2004

Despite the title, this talk is a rather thinly veiled introduction to sheaves. In particular, I will motivate the definition of presheaves and sheaves based on the examples of compact Hausdorff spaces and differentiable manifolds. Once this is achieved, I will give the elegant sheaf theoretic definition of a topological/differentiable/smooth/complex manifold. Time permitting, I will also show how this definition allows us to define geometric objects like tangent spaces intrinsically.

To understand most of the talk, knowledge of basic point-set topology and (modern) algebra is sufficient. In particular, prior familiarity with manifolds is not necessary to follow the talk.