3 citations · 3 across the 2 of their papers we have counts for
2 papers
gr-qc2012
Geometric Analysis of Ori-type Spacetimes
J. Dietz, A. Dirmeier, M. Scherfner
In 1993 A. Ori \cite{Ori93} presented spacetimes violating the chronology condition in order to answer the question whether a time machine construction has to violate the weak ener…
gr-qc2011★ 3 cited
Geometric Analysis of Particular Compactly Constructed Time Machine Spacetimes
Jürgen Dietz, Alexander Dirmeier, Mike Scherfner
We formulate the concept of time machine structure for spacetimes exhibiting a compactely constructed region with closed timelike curves. After reviewing essential properties of th…