193 citations · 879 across the 27 of their papers we have counts for
27 papers
Cosmologies with positive Lambda: Hierarchies of future behaviour
Helmut Friedrich
Smooth Cauchy data for the Einstein-Lambda-vacuum field equations with positive cosmological constant Lambda that are sufficiently close to de Sitter data develop into a solution t…
Cosmological Einstein-Lambda-perfect-fluid solutions with asymptotic dust or radiation equation of state
Helmut Friedrich
This article introduces the notions of asymptotic dust and asymptotic radiation equations of state. With these non-linear generalizations of the well known dust or (incoherent) rad…
Time-like hypersurfaces of prescribed mean extrinsic curvature
Helmut Friedrich
The results on the initial boundary value problem for Einstein's vacuum field equation obtained in \cite{friedrich:nagy} rely on an unusual gauge. One of the defining gauge source…
Peeling or not peeling -- is that the question ?
Helmut Friedrich
The concepts of isolated self-gravitating system, asymptotic flatness and asymptotic simplicity are reconsidered, various related results are discussed and put into perspective, ba…
Sharp asymptotics for Einstein--dust flows
Helmut Friedrich
We consider the Einstein-dust equations with positive cosmological constant on manifolds with time slices diffeomorphic to an orientable, compact 3-manifold . It is shown th…
Geometric Asymptotics and Beyond
Helmut Friedrich
We discuss some global and semi-global existence and stability results obtained with the use of the conformal field equations.