Mathematics
Open problems, research attempts and community review.
Provisional editorial order for Top Open Problems: Millennium Prize Problems first, followed by assessed difficulty tiers; the unassessed remainder keeps its previous catalogue order. About rankings
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- Math-4301 Planar half-density percolation has no unique infinite cluster
- Math-4302 Ibragimov's central limit conjecture for $\phi$-mixing sequences
- Math-4303 Existence questions — Question 2.1
- Math-4304 Existence questions — Question 2.2
- Math-4305 Existence questions — Question 2.3
- Math-4306 Existence questions — Question 2.4
- Math-4307 Rigidity and moduli — Question 3.1
- Math-4308 Rigidity and moduli — Question 3.2
- Math-4309 Minimal surfaces — Question 4.1
- Math-4310 Minimal surfaces — Question 4.2
- Math-4311 Reeb components — Question 5.1
- Math-4312 Reeb components — Question 5.2
- Math-4313 Sublaminations and superlaminations — Question 6.1
- Math-4314 Sublaminations and superlaminations — Question 6.3
- Math-4315 Sublaminations and superlaminations — Question 6.5
- Math-4316 Sublaminations and superlaminations — Question 6.6
- Math-4317 Branched surfaces and triangulations — Question 7.1
- Math-4318 Branched surfaces and triangulations — Question 7.2
- Math-4319 Branched surfaces and triangulations — Question 7.3
- Math-4320 Branched surfaces and triangulations — Question 7.4
- Math-4321 Branched surfaces and triangulations — Question 7.5
- Math-4322 Branched surfaces and triangulations — Question 7.7
- Math-4323 Branched surfaces and triangulations — Question 7.8
- Math-4324 Leaf spaces and transverse structures — Question 8.1
- Math-4325 Leaf spaces and transverse structures — Question 8.2
- Math-4326 Leaf spaces and transverse structures — Question 8.3
- Math-4327 Leaf spaces and transverse structures — Question 8.4
- Math-4328 Leaf spaces and transverse structures — Question 8.7
- Math-4329 Leaf spaces and transverse structures — Question 8.8
- Math-4330 Leaf spaces and transverse structures — Question 8.9
- Math-4331 Leaf spaces and transverse structures — Question 8.10
- Math-4332 Classical 3-manifold theory — Question 9.1
- Math-4333 Classical 3-manifold theory — Question 9.2
- Math-4334 Classical 3-manifold theory — Question 9.3
- Math-4335 Classical 3-manifold theory — Question 9.4
- Math-4336 Classical 3-manifold theory — Question 9.5
- Math-4337 Hyperbolic geometry — Question 10.1
- Math-4338 Hyperbolic geometry — Question 10.2
- Math-4339 Hyperbolic geometry — Question 10.3
- Math-4340 Hyperbolic geometry — Question 10.4
- Math-4341 Hyperbolic geometry — Question 10.5
- Math-4342 Hyperbolic geometry — Question 10.6
- Math-4343 Hyperbolic geometry — Question 10.8
- Math-4344 Foliated Teichmüller theory — Question 11.1
- Math-4345 Foliated Teichmüller theory — Question 11.2
- Math-4346 Foliated Teichmüller theory — Question 11.4
- Math-4347 Coarse foliations — Question 12.2
- Math-4348 Coarse foliations — Question 12.3
- Math-4349 Numerical invariants — Question 13.1
- Math-4350 Numerical invariants — Question 13.2