Algebraic geometry
Polynomial equations define spaces whose shapes, singularities and algebraic cycles pose different open problems.
8 problemsCollections
Selected problems that share a subject or a research tradition. Each leads to its own overview and sources.
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Groups and operators
Structure in groups, representations and infinite-dimensional spaces.
7 problemsKnots and manifolds
Smooth structures, curved spaces and the manifolds produced by knot surgery.
8 problems