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objects which can’t be defined without making choices but which end up independent of the choice
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Terminology: complex of sheaves with cohomology sheaves concentrated in degree zero
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Is there any proof that you feel you do not “understand”?
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Is there a “mathematical” definition of “simplify”?
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When are two operators simultaneously diagonalisable?
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Are there any books that take a ‘theorems as problems’ approach?
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Has anyone thought about creating a formal proof wiki with verifier?
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Understanding groups that are not linear.
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How to glue perverse sheaves of abelian groups?
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Is the category of vector bundles over a topological space abelian?
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Representable Presheaf
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Radical of annihilator of a module
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Commutativity of the fundamental group of any Lie Group
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Is orthogonal complement a rational map between Grasmannians?
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Rationality of algebraic groups
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Ubiquity of the push-pull formula
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Cohomology of complexes
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Why tropical geometry?
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Why is the definition of l-adic sheaves so complicated?
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Most striking applications of category theory?
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Using slides in math classroom
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topology by closed intervals on real line
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sheaf valued functors: how much can you prove about them just using category theory
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Is the sum of two prime ideals in different polynomial rings, K[X_i] and K[Y_i] a prime ideal in K[X_i Y_i]?
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Show that holomorphic functions are infinitely differentiable without complex analysis
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Motivating the Casimir element
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Looking for a simple proof that the generalized disc is bounded
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Field with cyclic product group
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Is there a name for this map induced by bilinear forms?
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Are presheaves of constant functions sheaves?
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