UnsolvedMath
ProblemsCategoriesSetsSearch

Unsolved Problems

Showing 1-1 of 1 problems

Difficulty Level

All LevelsL1: TractableL2: IntermediateL3: AdvancedL4: ExpertL5: Millennium Prize

Category

All CategoriesNumber TheoryCombinatoricsGraph TheoryAlgebraAlgebraic GeometryGeometryTopologyAnalysisPartial Differential EquationsSet TheoryComputer ScienceMathematical Physics

Problem Set

All SetsMillennium Prize ProblemsHilbert's 23 ProblemsBen Green's 100 Open ProblemsDARPA's 23 Mathematical ChallengesSmale's ProblemsLandau's ProblemsHardy-Littlewood ConjecturesErdős ProblemsRichard Guy - A: Prime Numbers
DARPA-004
Open

21st Century Fluids

Extend classical fluid dynamics to handle complex substances like foams, suspensions, gels, and liquid crystals....

L4
Partial Differential Equations
345
19

UnsolvedMath

A curated repository of open mathematics problems from elementary to Millennium Prize level.

Explore

  • All Problems
  • Categories
  • Millennium Prize

About

  • A curated collection of unsolved mathematics problems

Resources

  • Clay Mathematics Institute
  • Wikipedia List
© 2026 UnsolvedMath. Built by ulam.aicommunity.