50 citations · 541 across the 47 of their papers we have counts for
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Rigidly Rotating String Sticking in a Kerr Black Hole
Takahisa Igata, Hideki Ishihara, Masataka Tsuchiya +1
We analyze rigidly rotating Nambu--Goto strings in the Kerr spacetime, particularly focusing on the strings sticking in the horizon. From the regularity on the horizon, we find the…
Construction of test Maxwell fields with scale symmetry
Takahisa Igata
Geometrical symmetry in a spacetime can generate test solutions to the Maxwell equation. We demonstrate that the source-free Maxwell equation is satisfied by any generator of space…
Scale invariance and constants of motion
Takahisa Igata
Scale invariance in the theory of classical mechanics can be induced from the scale invariance of background fields. In this paper we consider the relation between the scale invari…
Complete conformal classification of the Friedmann-Lemaitre-Robertson-Walker solutions with a linear equation of state
Tomohiro Harada, B. J. Carr, Takahisa Igata
We completely classify Friedmann-Lemaître-Robertson-Walker solutions with spatial curvature and equation of state , according to their conformal structure, singul…