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Дата последнего поиска статьи во внешних источниках: 31 августа 2018 г.
Аннотация:Dilaton gravity with the form fields is known to possess dyon solutions with two
horizons for the discrete (“triangular”) values of the dilaton coupling constant a = pn(n + 1)/2. From this sequence only n = 1, 2 members were known analytically so far. We present two new n = 3, 5 triangular solutions for the theory with different
dilaton couplings a, b in electric and magnetic sectors in which case the quantization
condition reads ab = n(n + 1)/2. These are derived via the Toda chains for B2
and G2 Lie algebras. Solutions are found in the closed form in general D space-time
dimensions. They satisfy the entropy product rules and have negative binding energy
in the extremal case.