We investigate the geometrical properties, spectral classification, geodesics, and causal
structure of the Bonnor's spacetime [Journal of Physics A Math. Gen.,\textbf {10}, 1673 …

We investigate the geometrical properties, spectral classification, geodesics, and causal
structure of Bonnor's spacetime [WB Bonnor, A rotating dust cloud in general relativity, J …

In this article, we derive source integrals, ie, quasilocal expressions, for multipole moments
in axially symmetric and static spacetimes. Usually, these multipole moments are read off the …

Addressing a long-standing problem, we show that every van Stockum dust can be matched
to a 1-parametric family of non-static Papapetrou vacuum metrics, and the converse. The …

If rotating dust stars would exist in general relativity, they would represent examples of an
improbable complete balance between the attractive quasi-Newtonian force …

We propose a method to define and investigate finite size systems in general relativity in
terms of their matter plus gravitational energy content. We achieve this by adopting a generic …

Energy is at best defined quasilocally in general relativity. Quasilocal energy definitions
depend on the conditions one imposes on the boundary Hamiltonian, ie, how a finite region …

We derive source integrals for multipole moments that describe the behavior of static and
axially symmetric spacetimes close to spatial infinity. We assume that the matter distribution …

We derive source integrals for multipole moments that describe the behaviour of static and
axially symmetric spacetimes close to spatial infinity. We assume isolated non-singular …

Title: Matter Models in General Relativity with a Decreasing Number of Sym-metries Author:
Norman Gürlebeck Institute: Institute of theoretical physics Supervisor: Prof. RNDr. Jiří Bičák …