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She proved a number-theory conjecture open for nearly 50 years — and just shared the 2026 New Horizons Prize for it.
Solved a 50-year-old math puzzleShared the 2026 New Horizons in Mathematics Prize (with Caltech's Vesselin Dimitrov) for proving the Atkin–Swinnerton-Dyer unbounded denominators conjecture and new irrationality results for Dirichlet L-series.