Tanya Khovanova's Math Blog

Mathematics, applications of mathematics to life in general, and my life as a mathematician.

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• Recent Posts

  • Foams and the Four-Color Theorem February 5, 2025
  • Happy 2025! December 28, 2024
  • Identical Twins December 28, 2024
  • A Puzzle from the Möbius Tournament December 24, 2024
  • Red, Yellow, and Green Hats November 18, 2024

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  • Tanya Khovanova's Math Blog » Blog Archive » Foams and the Four-Color Theorem on Foams Made out of Felt
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