The Stacks project

Recent comments

• May 22 2026: tag 00O9 by Stacks Project
• May 22 2026: tag 00UV by Stacks Project
• May 22 2026: tag 09C2 by Stacks Project
• May 22 2026: tag 095U by Stacks Project
• May 21 2026: tag 0FTM by Stacks Project

Recent commits

• 22 May 2026: Strengthen a statement
• 22 May 2026: Insert internal reference
• 22 May 2026: Fix typo in proof
• 21 May 2026: Typo
• 21 May 2026: Being formally unramfied/etale is local on source and target

Recent blog posts

• 22 May 2026: Stacks project website slow
• 30 Jan 2026: Update
• 25 Jan 2026: Nonflat deformation theory
• 28 Sep 2025: de Rham cohomology of an Artinian ring
• 25 Sep 2025: Surjective map from affine space

Statistics

The Stacks project now consists of

• 7641 pages
• 765808 lines of code
• 21394 tags
• 3292 sections
• 116 chapters
• 244 slogans