Results 31 to 40 of about 57,690 (307)

Exactly solvable gravitating perfect fluid solitons in (2 + 1) dimensions

Journal of High Energy Physics, 2018
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, T. Romanczukiewicz, M. Wachla, A. Wereszczynski   +3 more
doaj   +1 more source

Construction Algorithm of Given Girth Graphs Based on Quantum Evolution [PDF]

Jisuanji gongcheng, 2017
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
doaj   +1 more source

Topological stars, black holes and generalized charged Weyl solutions

Journal of High Energy Physics, 2021
We construct smooth static bubble solutions, denoted as topological stars, in five-dimensional Einstein-Maxwell theories which are asymptotic to ℝ1,3×S1. The bubbles are supported by allowing electromagnetic fluxes to wrap smooth topological cycles.
Ibrahima Bah, Pierre Heidmann
doaj   +1 more source

Harmonic superpositions of non-extremal p-branes [PDF]

, 1997
The plot of allowed p and D values for p-brane solitons in D-dimensional supergravity is the same whether the solitons are extremal or non-extremal.
C. N. POPE, Gibbons G. W., H. LÜ, Hull C. M., I. V. LAVRINENKO, Myers R. C., T. A. TRAN   +6 more
core   +3 more sources

From static to cosmological solutions of N $$ \mathcal{N} $$ = 2 supergravity

Journal of High Energy Physics, 2019
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
doaj   +1 more source

Non-abelian 4-d black holes, wrapped 5-branes, and their dual descriptions [PDF]

, 2001
We study extremal and non-extremal generalizations of the regular non-abelian monopole solution of hep-th/9707176, interpreted in hep-th/0007018 as 5-branes wrapped on a shrinking S^2.
Gubser, Steven S., Tseytlin, Arkady A., Volkov, Mikhail S.   +2 more
core   +2 more sources

Initial Value Problem For Nonlinear Fractional Differential Equations With ψ-Caputo Derivative Via Monotone Iterative Technique

Axioms, 2020
In this article, we discuss the existence and uniqueness of extremal solutions for nonlinear initial value problems of fractional differential equations involving the ψ -Caputo derivative. Moreover, some uniqueness results are obtained.
Choukri Derbazi, Zidane Baitiche, Mouffak Benchohra, Alberto Cabada   +3 more
doaj   +1 more source

Excited States of Maximal Warm Holes

Universe, 2023
Recently, the Einstein–Maxwell–scalar model with a non-minimal coupling between the scalar and Maxwell fields was explored. As a result, a new class of black hole solutions with scalar hair was discovered.
Yuan Yue, Yong-Qiang Wang
doaj   +1 more source

Conformal bootstrap deformations

Journal of High Energy Physics, 2022
We explore the space of extremal functionals in the conformal bootstrap. By recasting the bootstrap problem as a set of non-linear equations parameterized by the CFT data, we find an efficient algorithm for converging to the extremal solution ...
Nima Afkhami-Jeddi
doaj   +1 more source

Non-extremal fractional branes [PDF]

, 2002
We construct non-extremal fractional D-brane solutions of type-II string theory at the Z_2 orbifold point of K3. These solutions generalize known extremal fractional-brane solutions and provide further insights into N=2 supersymmetric gauge theories and ...
A. Westerberg, Aharony, Aspinwall, Bain, Behrndt, Bertolini, Bertolini, Bertolini, Bertolini, Bigazzi, Billó, Billó, Buchel, Buchel, Buchel, Cvetič, Dasgupta, Di Vecchia, Diaconescu, Dijkgraaf, Douglas, Douglas, Douglas, Frau, Freedman, Gauntlett, Grana, Gubser, Gubser, Gubser, Hanany, Johnson, Johnson, Johnson, Johnson, Kallosh, Karch, Klebanov, Klebanov, Klebanov, Klebanov, Lü, M. Bertolini, Maldacena, Maldacena, Merlatti, N.A. Obers, Petrini, Polchinski, Polchinski, Polchinski, Seiberg, T. Harmark, Wijnholt, Witten, Witten   +55 more
core   +2 more sources