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gr-qc2026
Gravitational Lensing in a Kasner Background: Distinguishing Wormholes and Black Holes
Celio R. Muniz, Jonathan A. Rebouças, M. B. Cruz +1
We investigate gravitational lensing by compact objects embedded in anisotropic Bianchi-I cosmologies using directional Jacobi maps within the thin-lens approximation. The formalis…
gr-qc2026
Distinguishing wormholes via Einstein rings and global curvature
M. B. Cruz, C. R. Muniz, R. M. P. Neves +1
In this work, we investigate the gravitational lensing properties of a static Ellis-Bronnikov wormhole embedded in a curved Friedmann-Lemaître-Robertson-Walker (FLRW) universe. By…