Results 11 to 20 of about 57,898 (302)

Extremal Solutions of Generalized Caputo-Type Fractional-Order Boundary Value Problems Using Monotone Iterative Method

Fractal and Fractional, 2022
The aim of this research work is to derive some appropriate results for extremal solutions to a class of generalized Caputo-type nonlinear fractional differential equations (FDEs) under nonlinear boundary conditions (NBCs).
Choukri Derbazi, Zidane Baitiche, Mohammed S. Abdo, Kamal Shah, Bahaaeldin Abdalla, Thabet Abdeljawad   +5 more
doaj   +3 more sources

Extremal solutions of measure differential equations

Journal of Mathematical Analysis and Applications, 2016
The paper concerns the existence of the least and the greatest solutions for measure differential equations. The relationship with the notions of lower and upper solution is also investigated. Interesting examples are provided to motivate the key assumptions in each result.
Giselle Antunes Monteiro, Antonín Slavík   +1 more
openaire   +5 more sources

Iterative technique for third-order differential equation with three-point nonlinear boundary value conditions

Electronic Journal of Qualitative Theory of Differential Equations, 2016
In this paper, we study the existence of extremal solutions for a nonlinear third-order differential equation with three-point nonlinear boundary value conditions.
Xiuli Lin, Zengqin Zhao
doaj   +1 more source

Extremal Black Holes as Exact String Solutions [PDF]

Physical Review Letters, 1994
13 pages, harvmac, Imperial/TP/93-94/51, UCSBTH-94-24 (references added)
Horowitz, Gary T., Tseytlin, A. A.
openaire   +3 more sources

Dual Heterotic Black-Holes in Four and Two Dimensions [PDF]

, 1998
We consider a class of extremal and non-extremal four-dimensional black-hole solutions occuring in toroidally compactified heterotic string theory, whose ten-dimensional interpretation involves a Kaluza-Klein monopole and a five-brane. We show that these
Bakas, Behrndt, Behrndt, Bianchi, Cvetič, Cvetič, Cvetič, Ferrara, Gabriel Lopes Cardoso, Harvey, Horne, Ishibashi, Johnson, McGuigan, Nappi, Sen, Sfetsos, Sfetsos, Thomas Mohaupt   +18 more
core   +4 more sources

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

Non-extremal Localised Branes and Vacuum Solutions in M-Theory [PDF]

, 1998
Non-extremal overlapping p-brane supergravity solutions localised in their relative transverse coordinates are constructed. The construction uses an algebraic method of solving the bosonic equations of motion.
Aref'eva I Ya, Aref'eva I Ya, Aref'eva I Ya, Arefeva I, Behrndt K, Bergshoeff E, de Boer J, Edelstein J, Gal'tsov D V, Gauntlett J P Intersecting branes, Gibbons G W, Giveon A, Gomes C, Guven R, Horowitz G T, I V Volovich, I Ya Aref'eva, Ivanov M G, Ivashchuk V D, Ivashchuk V D, Ivashchuk V D, Lavrinenko I V, Lu H, M G Ivanov, O A Rytchkov, Sen A An introduction to non-perturbative string theory, Stelle K S, Townsend P K, Tseytlin A A   +28 more
core   +3 more sources

Two kissing bolts

Journal of High Energy Physics, 2018
The study of non-supersymmetric black hole microstates offers the potential to resolve the black hole information paradox. A system of equations was recently obtained that enables the systematic construction of non-supersymmetric smooth horizonless ...
Guillaume Bossard, Stefanos Katmadas, David Turton   +2 more
doaj   +1 more source

Non-BPS black branes in M-theory over Calabi-Yau threefolds. (Non-)uniqueness and recombination of non-BPS black strings in single modulus CICY and THCY models

Journal of High Energy Physics, 2022
We study extremal solutions arising in M-theory compactifications on Calabi-Yau threefolds, focussing on non-BPS attractors for their importance in relation to the Weak Gravity Conjecture (WGC); M2 branes wrapped on two-cycles give rise to black holes ...
Alessio Marrani, Anshul Mishra, Prasanta K. Tripathy   +2 more
doaj   +1 more source

Einstein-Maxwell-scalar black holes: classes of solutions, dyons and extremality

Journal of High Energy Physics, 2019
Spherical black hole (BH) solutions in Einstein-Maxwell-scalar (EMS) models wherein the scalar field is non-minimally coupled to the Maxwell invariant by some coupling function are discussed. We suggest a classification for these models into two classes,
D. Astefanesei, C. Herdeiro, A. Pombo, E. Radu   +3 more
doaj   +1 more source