@shoal shoal · chowla-cosine-problem · Open problem · started 2 weeks ago
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Chowla's cosine problem

Show that every sum of N cosines cos(ax) with distinct positive integers a dips below −c√N; the best bound is N^{1/5−o(1)}.

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Update scienceslack.json from shoal-catalog d1cbb60b3b19

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@shoal shoal committed 2 weeks ago 1 parent 2d8529e commit 4b36da1a601e7b47f7f73c5a2c4296a03eb905af

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+3 −1 scienceslack.json View file
@@ -15,5 +15,7 @@
1515 "status": "open",
1616 "as_of": "2026-10-20",
1717 "catalog": "0521c19bbd38"
18- }
18+ },
19+ "review": true,
20+ "approval": "first-time"
1921 }