Results 21 to 30 of about 70,107 (293)
مجلة بغداد للعلوم, 2020 In this paper, we study the growth of solutions of the second order linear complex differential equations insuring that any nontrivial solutions are of infinite order.
ayad alkhalidy, Eman Hussein
doaj +1 more source
Two-dimensional Black Holes in a Higher Derivative Gravity and Matrix Model [PDF]
, 2007 We construct perturbatively a class of charged black hole solutions in type 0A string theory with higher derivative terms. They have extremal limit, where the solution interpolates smoothly between near horizon AdS_2 geometry and the asymptotic linear ...
Aharony +31 more
core +1 more source
Extremal Solutions of Functional Differential Inclusions
Journal of Mathematical Analysis and Applications, 1993 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
Non-extremal D-instantons [PDF]
, 2004 We construct the most general non-extremal deformation of the D-instanton solution with maximal rotational symmetry. The general non-supersymmetric solution carries electric charges of the SL(2,R) symmetry, which correspond to each of the three conjugacy
A Collinucci +16 more
core +3 more sources
Exact solutions for extreme black hole magnetospheres [PDF]
Journal of High Energy Physics, 2015 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
Stringy Corrections to Kaluza-Klein Black Holes [PDF]
, 1997 We consider string theory corrections to 4D black holes which solve the 5D vacuum Einstein equations. We find that the corrections vanish only for the extremal electric solution.
't Hooft +36 more
core +2 more sources
Energy loss at zero temperature from extremal black holes
European Physical Journal C: Particles and Fields, 2018 Using the AdS/CFT correspondence, we probe the extremal black holes by studying the energy loss of a moving heavy point particle in a strongly-coupled boundary field theory at zero temperature and finite charge density. We first consider the extremal AdS-
Moslem Ahmadvand +1 more
doaj +1 more source
Gradient flow of Einstein-Maxwell theory and Reissner-Nordström black holes
Journal of High Energy Physics, 2023 Ricci flow is a natural gradient flow of the Einstein-Hilbert action. Here we consider the analog for the Einstein-Maxwell action, which gives Ricci flow with a stress tensor contribution coupled to a Yang-Mills flow for the Maxwell field.
Davide De Biasio +3 more
doaj +1 more source
Solution of Extremely Large Integral-Equation Problems [PDF]
2007 International Conference on Electromagnetics in Advanced Applications, 2007 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
Basic theory of nonlinear third-order q-difference equations and inclusions
Mathematical Modelling and Analysis, 2013 We investigate the existence of solutions for boundary value problems of the third-order q-difference equations and inclusions. Our results are based on some standard fixed point theorems.
Bashir Ahmad, Juan Jose Nieto
doaj +1 more source