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Abstract <p><i>"Is it a goose, a duck or a swan?"</i>—asked the alien. <i>"I do not know; and to</i> <Emphasis Type="ItalicUnderline">know</Emphasis> <i>we have to look</i> <Emphasis Type="ItalicUnderline">closer</Emphasis>."—said the earthling. <i>"But even from here we can see it has webbed feet... so it is not a chicken." </i></p> Graphical Abstract <p></p>

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Same as ever: looking for (in)variants in the black holes landscape

  • 期刊论文

  • 发表日期：

    2025年1月13日

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  • Carlos A. R. Herdeiro

摘要

Abstract

"Is it a goose, a duck or a swan?"—asked the alien. "I do not know; and to know we have to look closer."—said the earthling. "But even from here we can see it has webbed feet... so it is not a chicken."

Graphical Abstract