Presents a curvature-based perturbative method for photon spheres, massive particle surfaces, and black hole shadows that handles mass variations and claims new results for the time-like case.
Okumura, Totally umbilical hypersurfaces of a locally product Riemannian manifold, Kodai Math
2 Pith papers cite this work. Polarity classification is still indexing.
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Extends intrinsic curvature criteria for massive particle surfaces to stationary spacetimes and demonstrates application to black hole shadows in Kerr-family and Einstein-Maxwell-dilaton solutions.
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A perturbative geometric approach for photon spheres, massive particle surfaces and black hole shadows with mass variations
Presents a curvature-based perturbative method for photon spheres, massive particle surfaces, and black hole shadows that handles mass variations and claims new results for the time-like case.
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Massive particle surfaces and black hole shadows from intrinsic curvature
Extends intrinsic curvature criteria for massive particle surfaces to stationary spacetimes and demonstrates application to black hole shadows in Kerr-family and Einstein-Maxwell-dilaton solutions.