- What is the ascending chain condition on ideals, and why does it guarantee orderly arithmetic in a ring?
Differential Geometry
Geometry using calculus, foundational to relativity and manifolds.
- What contribution did Lars Ahlfors make to the theory of conformal mappings and complex analysis?
- What is the Plateau problem, and how did Jesse Douglas solve it?
- Why does a soap film naturally form a surface of minimal area across a wire loop?
- How did Grigori Perelman use Ricci flow and a surgery procedure to overcome the obstacle that had stopped Richard Hamilton?
- What did Grigori Perelman prove using Richard Hamilton's Ricci flow technique?
- What range of mathematical fields did Terence Tao's award-winning work span?
- What physical factors does the Ponytail Shape Equation combine to predict the shape of a swaying ponytail?
- Why does the statistical curliness of individual hair fibres matter for predicting overall ponytail geometry?
- How does the physics of hair bundles under tension relate to problems in composite materials and soft robotics?
- What did Maryam Mirzakhani's work on Riemann surfaces and moduli spaces actually establish?
- How did Martin Hairer's theory of regularity structures give rigorous meaning to equations physicists already used informally?