Results 21 to 30 of about 57,690 (307)
Extremal Solutions of Functional Differential Inclusions
Let \(X\) be a separable Banach space; \({\mathcal K}\subset X\) be a cone and \(v: [-\tau,a]\to X\) be a solution of a problem \(\dot v(t)\in F(t,v_ t)+{\mathcal K}\), \(t\in [0,a]\); \(v_ 0\geq\varphi\), where \(F\) is a Carathéodory type multifunction with convex closed values satisfying the Ambrosetti type regularity condition. The viability result
Hu, S.C. +2 more
openaire +2 more sources
Exact solutions for extreme black hole magnetospheres [PDF]
We present new exact solutions of Force-Free Electrodynamics (FFE) in the Near-Horizon region of an Extremal Kerr black hole (NHEK) and offer a complete classification of the subset that form highest-weight representations of the spacetime's SL(2,R) x U(1) isometry group.
Lupsasca, Alexandru, Rodriguez, Maria
openaire +3 more sources
Squashed, magnetized black holes in D = 5 minimal gauged supergravity
We construct a new class of black hole solutions in five-dimensional Einstein-Maxwell-Chern-Simons theory with a negative cosmological constant. These configurations are cohomogeneity-1, with two equal-magnitude angular momenta. In the generic case, they
Jose Luis Blázquez-Salcedo +3 more
doaj +1 more source
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
doaj +1 more source
Solution of Extremely Large Integral-Equation Problems [PDF]
We report the solution of extremely large integral-equation problems involving electromagnetic scattering from conducting bodies. By orchestrating diverse activities, such as the multilevel fast multipole algorithm, iterative methods, preconditioning techniques, and parallelization, we are able to solve scattering problems that are discretized with ...
Ergül, Özgür +2 more
openaire +2 more sources
Upper and lower solution method for Hilfer fractional evolution equations with nonlocal conditions
This paper is concerned with the existence of extremal mild solutions for Hilfer fractional evolution equations with nonlocal conditions in an ordered Banach space E.
Haide Gou, Yongxiang Li
doaj +1 more source
A functional integral inclusion involving Carathéodories
In this paper the existence of extremal solutions of a functional integral inclusion involving Carathéodory is proved under certain monotonicity conditions.
Bapurao Dhage
doaj +1 more source
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
doaj +1 more source
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
core +1 more source
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

