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Everything about Algebraic stack

Generalization of algebraic spaces or schemes

In mathematics, an algebraic stack is a vast generalization of algebraic spaces, or schemes, which are foundational for studying moduli theory. Many moduli spaces are constructed using techniques specific to algebraic stacks, such as Artin's representability theorem, which is used to construct the moduli space of pointed algebraic curves and the moduli stack of elliptic curves. Originally, they were introduced by Alexander Grothendieck to keep track of automorphisms on moduli spaces, a technique which allows for treating these moduli spaces as if their underlying schemes or algebraic spaces are smooth. After Grothendieck developed the general theory of descent, and Giraud the general theory of stacks, the notion of algebraic stacks was defined by Michael Artin. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Algebraic stackA 5-minute orientation
  2. Skim a recent paper: Cox ring of an algebraic stackInfluential work since 2022
  3. Pick up a classic book: Algebraic numbers and algebraic functionsThe most-reprinted book on the subject
  4. Read the landmark paper: Field Validation of Algebraic Equations for Stack and Wind Driven Air Infiltration CalculationsCited 81 times
  5. Go sideways: Stack (mathematics)A closely related topic
  6. Go sideways: Glossary of algebraic geometryA closely related topic

📖 Definitions

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🗂️ The subject at a glance

  1. Definition
  2. Structure sheaf
  3. Examples

🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

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