Sökning: "2-cocycles"

Hittade 1 avhandling innehållade ordet 2-cocycles.

1. 1. Stacky Modifications and Operations in the Étale Cohomology of Number Fields

   Författare :Eric Ahlqvist; David Rydh; Alexander Schmidt; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stacks; ramified covers; étale cohomology; cup product; Massey product; Galois cohomology; building data; 2-cocycles; Matematik; Mathematics;

   Sammanfattning : This thesis consists of 4 papers. In Paper A we define stacky building data for stacky covers in the spirit of Pardini and give an equivalence of (2,1)- categories between the category of stacky covers and the category of stacky building data. LÄS MER