129 citations · 1.9k across the 97 of their papers we have counts for
98 papers
Branched Spacetime Geometries from Harmonic Maps: Energy Matching and Its Limitations
M. Halilsoy, S. Habib Mazharimousavi
We investigate a topological construction of general-relativistic geometries based on harmonic self-maps of the two-sphere, . Such maps are classified by an…
Splitting the Nariai cosmology
Mustafa Halilsoy, Chia-Li Hsieh
At certain time the Nariai spacetime is split into two parts. The resulting cosmology consists of the original Nariai and a new component with topology , that i…
General Relativistic Fall on a Thick-Plate
Mustafa Halilsoy, Vahideh Memari
As an extension of a thin-shell, we adopt a single parametric plane-symmetric Kasner-type spacetime to represent an exact thick-plate. This naturally extends the domain wall spacet…
Probing naked singularities in the charged and uncharged -metrics with quantum wave packets
Ozay Gurtug, Mustafa Halilsoy, Mert Mangut
The non-trivial naked singularities that possess directional behavior in the charged and uncharged Zipoy-Voorhees (ZV) spacetimes, known as γ - metrics are investigated within the…
Stationary, charged Zipoy-Voorhees metric from colliding wave spacetime
Mustafa Halilsoy, Mert Mangut, Chia-Li Hsieh
Through the Ernst formalism we provide expression for a class of colliding Einstein-Maxwell (EM) metrics with cross polarization. Local isometry is imposed as a means to transform…
Colliding fields in two-dimensional dilaton gravity background
Mustafa Halilsoy, Chia-Li Hsieh
In the 1+1-dimensional dilatonic background of Callan et al. \cite{Callan1992}, we collide fields. Real and ghost fields are considered separately. The colliding ghost fields in th…