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OP-8621Status unassessedGeometry and topology

Sheaf cohomology and endomorphisms · Question 1

Macaulay2: expanded functionality and improved efficiency · Historical workshop question

Editorial mapping of AIMPL source category: Algebraic geometry. http://aimpl.org/macaulay2efie/ Not an author-supplied MSC code.

Historical list · status unassessedAs of 2026-09-08Source & evidence ↓

Problem statement

What is the best way to implement a "morphism of sheaves" data type? What's the best way to calculate the maps on sheaf cohomology induced by such a morphism on a projective variety?

Lean 4

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Background

Question context

M2 currently has sheaves on projective varieties, but no morphisms between them, and no way to compute the associated maps on cohomology.

Progress & source assessment

Historical workshop record. Current open/solved status has not been independently reassessed.

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References
  1. [1]Macaulay2: expanded functionality and improved efficiency link

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