Modified Black Hole with Extra Dimensions as an Unusual Dark Matter Candidate

By considering an ansatz for \((1+(3+n))\)-dimensional static spacetime with three-dimensional spherical symmetry, we find different classes of vacuum solutions of Einstein field equations. A class of solutions with nontrivial extension of the Schwarzschild spacetime with extra dimensions features unusual properties, which may provide a possibility to address problems of dark matter and dark energy. Abstract Published by the Jagiellonian University 2025 authors