Livšic theorem for low-dimensional diffeomorphism cocycles

  • Alejandro Kocsard

    Universidade Federal Fluminense, Niterói, Brazil
  • Rafael Potrie

    Universidad de la República, Montevideo, Uruguay

Abstract

We prove a Livšic type theorem for cocycles taking values in groups of diffeomorphisms of low-dimensional manifolds. The results hold without any localization assumption and in very low regularity. We also obtain a general result (in any dimension) which gives necessary and sufficient conditions to be a coboundary.

Cite this article

Alejandro Kocsard, Rafael Potrie, Livšic theorem for low-dimensional diffeomorphism cocycles. Comment. Math. Helv. 91 (2016), no. 1, pp. 39–64

DOI 10.4171/CMH/377