# Why can only asymptotically flat and Ads black hole have the thermodynamics? What's about asymptoticaly ds blackhole?

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Almost all advanced GR textbooks will have the content of black hole thermodynamics for asymptotically flat black hole. And this paper solve the asymptotically Ads(Anti-de Sitter) black hole http://link.springer.com/article/10.1007/BF01208266. Why there is no black hole thermodynamics in asymptotically de-Sitter black hole?

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