19 Answers votes newest views recent 6Cosheafification 6Cosheaf homology and a theorem of Beilinson (in a paper on Mixed Tate Motives) 2Understanding (the wiki page on) Verdier duality 2A Learning Roadmap request: From high-school to mid-undergraduate studies 8Which Spheres are Complex Manifolds? 18Yet another ‘roadmap’ style request- a second bite of the cherry 16What should we teach to liberal arts students who will take only one math course? 4Proofs that require the existence of large finite numbers 7Books you would like to see translated into English. 0What’s your favorite equation, formula, identity or inequality? 28A single paper everyone should read? 13PDE on manifolds 10Can minimal surfaces be characterized by some universal property? 29Switching Research Fields 5Where does a math person go to learn quantum mechanics? 1CW-structures and Morse functions: a reference request 1Alternative Undergraduate Analysis Texts 4Two kinds of orientability/orientation for a differentiable manifold 3How much “Morse theory” can be accomplished given only a continuous transformation of a space?