Top Open Problems
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
Browse by subject
Search this collection by problem ID, title, classification, subject, provider, or model.
Search results
No matching problems. Try another search or clear a filter.
15,944 records · Search and filter
- Math-5251 Discrete rotating modes and their fast/slow reduction
- Math-5252 What is deterministic in a quenched CLT?
- Math-5253 Martingales from sequential transfer contraction
- Math-5254 Gluing blockwise martingale decompositions across seams
- Math-5255 Flux normalization and clustering tests for billiard strip targets
- Math-5256 Explicit symbolic martingales for a sequential hyperbolic class
- Math-5257 A Wasserstein rate dictionary for local-update generators
- Math-5258 An explicit graph transform on the state-dependent-delay solution manifold
- Math-5259 A simplexwise Patterson-Sullivan inequality and entropy-metric Hessian
- Math-5260 A row-column Sobolev operator space with a sharp amenable cb norm
- Math-5261 A one-coordinate unlockability certificate for open chains in three-space
- Math-5262 Corner structure and chamberwise product topology for variable-length planar polygons
- Math-5263 Fiber products and exact Betti calculations for partial 2-tree linkages
- Math-5264 Leading asymptotics for polygonal-linkage chamber orbits
- Math-5265 Generic boundary anchoring, arbitrary pin cuts, and an equilateral six-triangle singularity
- Math-5266 Angle-data reconstruction and the 6g genus deficit
- Math-5267 Formation diameter after deleting one bar
- Math-5268 A decomposition-group criterion and a local-global ramification gap
- Math-5269 Effective moduli symmetry and the obstruction from gauge fixing
- Math-5270 Symmetry in Carpenter's-rule motions and pointed pseudotriangulations
- Math-5271 An expansive tangent obstruction to symmetry breaking
- Math-5272 A one-point differential criterion for global symmetry persistence
- Math-5273 Role-compatible symmetry reduction for persistent formations
- Math-5274 Nonexistence of the complex (8,3) ETF and a triangle-balance certificate
- Math-5275 A critical horocycle energy level without closed magnetic geodesics
- Math-5276 Integral divisibility profiles and a gcd obstruction for minimax levels
- Math-5277 Quadratic counting of closed flat geodesic classes
- Math-5278 Length rigidity in a free homotopy class
- Math-5279 A moduli correction and fixed-volume factor obstruction
- Math-5280 Closed-one-form twists obstruct the asserted cyclic-cover product
- Math-5281 Escape obstructions for a monotone round-to-Calabi-Croke path
- Math-5282 Free Fubini--Study quotients refute the literal global-CROSS conclusion
- Math-5283 A compact normalized-null-cone obstruction
- Math-5284 Positive Killing tensors as coercive completeness certificates
- Math-5285 Smooth reversible counterexamples and an exact symmetrization diagnostic
- Math-5286 A compact flat counterexample from odd holonomy
- Math-5287 Affine rigidity and a mobility-two reduction on the Lorentz 3-sphere
- Math-5288 A lift-dependent Martin formula and a sharp middle-degree obstruction
- Math-5289 Why fixed subtori miss the regular 3-Sasakian zero set
- Math-5290 Kernel, cokernel, and a top-degree obstruction for contact Kirwan maps
- Math-5291 Density fails by compactness for locally free circle actions
- Math-5292 Intrinsic contact moment maps and a realizability sieve
- Math-5293 Contact-form scaling obstruction and the Sasakian Higgs repair
- Math-5294 A concrete obstruction to resolution-independent products on intersection cohomology
- Math-5295 Integral and mod-p Kirwan maps for weighted projective orbifolds
- Math-5296 Cohomology targets and sectorwise Kirwan surjectivity
- Math-5297 A finite-area counterexample on the cotangent cylinder
- Math-5298 Diagonal Hodge type under regular Kähler reduction
- Math-5299 Newton subdivisions as combinatorial models for tropical hypersurfaces
- Math-5300 Mixed-cell multiplicity and the real parity obstruction