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researcher

Koichi Hayashi

3 papers hereh-index 191.7k citations138 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author3

Across the 3 of 3 papers where every author was matched, so the position is known.

fields
  • gr-qc2
  • hep-th1

identity via Semantic Scholar / OpenAlex

most citedGravitational Shock Waves for Schwarzschild and Kerr Black Holes

18 citations · 22 across the 3 of their papers we have counts for

collaborators

3 papers

gr-qc1995★ 3 cited

Newman-Penrose Formalism for Gravitational Shock Waves

Koichi Hayashi, Toshiharu Samura

First order perturbations for the fields with spin on the background metric of the gravitational shock waves are discussed. Applying the Newman -- Penrose formalism, exact solution…

hep-th1994★ 1 cited

Planckian Scatterings of Massive Particles and Gravitational Shock Waves

Koichi HAYASHI, Toshiharu SAMURA

The scattering process of two particles at Planck energies or beyond is calculated using the gravitational shock wave metric for a massive black hole. Then, the scattering between…

gr-qc1994★ 18 cited

Gravitational Shock Waves for Schwarzschild and Kerr Black Holes

Koichi HAYASHI, Toshiharu SAMURA

The metrics of gravitational shock waves for a Schwarzschild black hole in ordinary coordinates and for a Kerr black hole in Boyer-Lindquist coordinates are derived. The Kerr metri…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.