Monthly Archives: October 2019

What if J. Peterman wanted you to learn commutative algebra?

1983.

The crisp leaves as I waited for the Dinky. Atiyah-Macdonald light in my hand. That was the fall I became intoxicated with power as I shrank open sets to points and revealed the structure of the universe. By the holidays I’d acquired the whole set of moves. Cracking the nut of a Noetherian ring. Folding and unfolding integral extensions. Localizing to a point with a gimlet eye. Flipping from rings to spaces, spaces to rings, with the ease of Evert working the baseline.

Math 215A. Commutative Algebra. James Cameron. Not that James Cameron, but just as life-changing.

— Guest post

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