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math105-s22:hw:hw12

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HW 12

  1. Following Thursday's class, can you verify explicitly that any closed differential 2-form in $\R^3$ is exact?
  1. (optional) read about Brouer's fixed point theorem in Pugh, and try Pugh Exercise 71, hairy ball theorem.
math105-s22/hw/hw12.1650126252.txt.gz · Last modified: 2026/02/21 14:43 (external edit)