Alphabeta Math

Grothendieck Spectral Sequences and Computations — Examples

About this page
Pipeline-generated
How statement and proof provenance work

The first chip identifies the source of the statement or construction; the second identifies the source of its local proof or verification.

  • Literature-sourced: the exact statement appears in a cited source; only wording and notation differ.
  • AI-adapted: a semantically identical restatement of literature-sourced material, modulo indexing, notation, and boundary cases adopted by the library.
  • AI-generated: a genuinely novel statement formulated by AI, with no source for the claim itself.

These labels describe origin, not correctness: citations and verification chips remain separate evidence.

1 · Prerequisites
Abstract Algebra
Category Theory
Combinatorics
Group Theory
Homological Algebra
Linear Algebra
Number Theory
Real Analysis
Set Theory
2 · Logical flowchart

3 · Items

Example

A two-row hypercohomology spectral sequence

Example

Grothendieck with an exact outer functor

Example

Five-term sequence of a composite functor

Example

UCT as a two-column spectral sequence over the integers

Example

Kunneth as a two-column spectral sequence over a PID

Example

LHS for a split group extension

Example

A collapse with a noncanonical extension choice

Counterexample

Identical E2 pages with different later differentials

Example

A complete spectral-sequence computation record

Sources