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ENTROPY RELATION OF MULTIPLE HORIZON BLACK HOLES // Tomsk State Pedagogical University Bulletin. 2014. Issue 12 (153). P. 177-182

New relations for multi-horizon black hole entropy are presented which include entropy product, “part” entropy product and entropy sum. We also discuss their differences and similarities, in order to make a further study on understanding the origin of black hole entropy at the microscopic level with hope.

Keywords: black hole entropy, entropy sum, partial entropy product