Results 31 to 40 of about 57,898 (302)
From rotating to charged black holes and back again
The mild form of the Weak Gravity Conjecture (WGC) requires higher derivative corrections to extremal charged black holes to increase their charge-to-mass ratio. This allows decay via emission of a smaller extremal black hole.
Lars Aalsma, Gary Shiu
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Extremal dynamics on complex networks: Analytic solutions [PDF]
The Bak-Sneppen model displaying punctuated equilibria in biological evolution is studied on random complex networks. By using the rate equation and the random walk approaches, we obtain the analytic solution of the fitness threshold $x_c$ to be 1/(_f+1), where _f=/ (=) in the quenched (annealed) updating case, where is the n-th moment of the degree ...
Masuda, N., Goh, K. -I., Kahng, B.
openaire +3 more sources
This paper is concerned with the existence of extremal solutions for periodic boundary value problems for conformable fractional differential equations with deviating arguments.
Huiling Chen, Shuman Meng, Yujun Cui
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On Extremal Limits and Duality Orbits of Stationary Black Holes [PDF]
With reference to the effective three-dimensional description of stationary, single center solutions to (ungauged) symmetric supergravities, we complete a previous analysis on the definition of a general geometrical mechanism for connecting global ...
Andrianopoli, Laura +2 more
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Exactly solvable gravitating perfect fluid solitons in (2 + 1) dimensions
The Bogomolnyi-Prasad-Sommerfield (BPS) baby Skyrme model coupled to gravity is considered. We show that in an asymptotically flat space-time the model still possesses the BPS property, i.e., admits a BPS reduction to first order Bogomolnyi equations ...
C. Adam +3 more
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Black Hole Solutions of Kaluza-Klein Supergravity Theories and String Theory [PDF]
We find U(1)_{E} \times U(1)_{M} non-extremal black hole solutions of 6-dimensional Kaluza-Klein supergravity theories. Extremal solutions were found by Cveti\v{c} and Youm\cite{C-Y}. Multi black hole solutions are also presented.
Gibbons G W +6 more
core +2 more sources
Construction Algorithm of Given Girth Graphs Based on Quantum Evolution [PDF]
To construct an extremal graph with a given girth is still a challenging problem of graph theory.Especially when the vertex number increasex combination explosion will appear.Thus,this paper proposes an algorithm for constructing graphs with given girth ...
FENG Xiaohua,SUN Yongqi
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Sequences of extremal radially excited rotating black holes
In Einstein-Maxwell-Chern-Simons theory the extremal Reissner-Nordstr\"om solution is no longer the single extremal solution with vanishing angular momentum, when the Chern-Simons coupling constant reaches a critical value.
Blazquez-Salcedo, Jose Luis +3 more
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Four-dimensional High-Branes as Intersecting D-Branes [PDF]
We show that a class of extremal four-dimensional supersymmetric ``high-branes'', i.e. string and domain wall solutions, can be interpreted as intersections of four ten-dimensional Dirichlet branes.
Balasubramanian +30 more
core +5 more sources
From static to cosmological solutions of N $$ \mathcal{N} $$ = 2 supergravity
We obtain cosmological solutions with Kasner-like asymptotics in N $$ \mathcal{N} $$ = 2 gauged and ungauged supergravity by maximal analytic continuation of planar versions of non-extremal black hole solutions.
J. Gutowski, T. Mohaupt, G. Pope
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