30 Answers votes newest views recent 1Learning through guided discovery 13Who coined the name tensor and why? 6Canonical examples of algebraic structures 5Is symplectic reduction interesting from a physical point of view? 16Work of ICM 2010 plenary speakers (and other humans) 2Adaptive controllers for stiff ODE and DAE integrators 3Birkhoff conjecture about integrable billiards 5Major mathematical advances past age fifty 1What kind of uniqueness can I conclude for solutions to a simple functional equation? 4What are examples of mathematical concepts named after the wrong people? (Stigler’s law) 11Biographic Data/Stories about André Néron 4candidate for rigorous _mathematical_ definition of “canonical”? 6What is so “spectral” about spectral sequences? 4How to figure out the type of the bifurcation in a dynamical system? 15Real-world applications of mathematics, by arxiv subject area? 0How important are publications for undergrads? 3Zeta function for curves in a manifold 6How do I make the conceptual transition from multivariable calculus to differential forms? 2Magic trick based on deep mathematics 3Equations for Integrable Systems 17How many mathematicians are there? 35Colloquial catchy statements encoding serious mathematics (2) 6Mathematicians who were late learners?-list 2Intuition for the last step in Serre’s proof of the three-squares theorem 4Where does a math person go to learn quantum mechanics? 2Where can I learn about (the asymptotics of) Toeplitz operators? 4Hamiltonian S^1 actions with isolated fixed points 4Is a smooth closed surface in Euclidean 3-space rigid? 1Helm’s improvement to Beck-Fiala theorem 1How is tropicalization like taking the classical limit?