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arXiv · 2606.18868

Non-trivial boundary conditions in general-relativistic models

Davide Astesiano·Matteo Luca Ruggiero·Federico Re
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Abstract

We propose an alternative interpretation of dark matter effects within the framework of General Relativity. In particular, we suggest that, in astrophysical and cosmological contexts, different initial assumptions about a system inevitably lead to different interpretations of the same phenomena. As a concrete example, we examine self-gravitating systems composed of an axially symmetric rotating dust fluid and show that effects typically attributed to the presence of additional matter, can instead be reproduced through an appropriate choice of initial and boundary conditions for the equations governing the system.

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Davide Astesiano, Matteo Luca Ruggiero, Federico Re. 2026-06-17. Non-trivial boundary conditions in general-relativistic models. https://arxiv.org/abs/2606.18868

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