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gr-qc2026
Gravitational waves away from a Schwarzschild black hole: full spectrum analysis
Marco Refuto, Giampiero Esposito
Gravitational waves as one approaches Schwarzschild null infinity are the core of our investigation, treated as the spin-weighted generalisation of a massless scalar field. In part…
gr-qc2025★ 1 cited
New perspectives on the irregular singular point of the wave equation for a massive scalar field in Schwarzschild spacetime
Giampiero Esposito, Marco Refuto
For a massive scalar field in a fixed Schwarzschild background, the radial wave equation obeyed by Fourier modes is first studied. After reducing such a radial wave equation to its…