2011/01/21 by Jonathan Wise, Wise, Jonathan · 1 citation
Mathematics · #14F20 #18F10 #18F20 #Algebraic Geometry (math.AG) #Algebraic Geometry and Number Theory #Algebraic structures and combinatorial models #Commutative Algebra (math.AC) #FOS: Mathematics #Homotopy and Cohomology in Algebraic Topology #math.AC #math.AG #msc:14F20 #msc:18F10 #msc:18F20
paper · pdf · doi:10.48550/arxiv.1101.4069
15 pages; one section added to clarify some arguments
openalex publication_date 2011/01/21 · arxiv created 2011/07/12 · arxiv updated 2011/07/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We define a sheaf of abelian groups whose cohomology is represented by the cotangent complex. We show how obstructions to some standard deformation problems arise as the classes of torsors under and gerbes banded by this sheaf.