ScienceQuanta Magazineabout 2 hours ago
Mathematicians Solve 55-Year-Old Graham Conjecture
11 min read
Mathematicians resolved Ronald Graham's 1971 rearrangement conjecture, which asks whether any set of nonzero integers can be ordered so all partial sums differ, even in clock arithmetic modulo a prime. Lisa Sauermann and Huy Tuan Pham closed the final gap in February 2026, after four papers by several young researchers spanning probabilistic combinatorics.
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