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- W4313447655 abstract "Motivated by stationary vacuum solutions of the Einstein field equations, we study singular harmonic maps from domains of 3-dimensional Euclidean space to the hyperbolic plane having bounded hyperbolic distance to Kerr harmonic maps. In the degenerate case, we prove that every such harmonic map admits a unique tangent harmonic map at the extreme black hole horizon. The possible tangent maps are classified and shown to be shifted 'extreme Kerr' geodesics in the hyperbolic plane that depend on two parameters, one determined by angular momentum and another by conical singularities. In addition, rates of convergence to the tangent map are established. Similarly, expansions in the asymptotically flat end are presented. These results, together with those of Li-Tian and Weinstein, provide a complete regularity theory for harmonic maps from $mathbb R^3setminus ztext{-axis}$ to $mathbb H^2$ with prescribed singularities. Lastly, the analysis is utilized to prove existence of the so called near horizon limit, and to compute the associated near horizon geometries of extreme black holes." @default.
- W4313447655 created "2023-01-06" @default.
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- W4313447655 date "2022-12-30" @default.
- W4313447655 modified "2023-10-18" @default.
- W4313447655 title "Asymptotic Analysis of Harmonic Maps With Prescribed Singularities" @default.
- W4313447655 doi "https://doi.org/10.48550/arxiv.2212.14826" @default.
- W4313447655 hasPublicationYear "2022" @default.
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