Results 31 to 40 of about 1,306 (257)
State-Space Geometry, Statistical Fluctuations, and Black Holes in String Theory
Advances in High Energy Physics, 2014 We study the state-space geometry of various extremal and nonextremal black holes in string theory. From the notion of the intrinsic geometry, we offer a state-space perspective to the black hole vacuum fluctuations.
Stefano Bellucci, Bhupendra Nath Tiwari
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On the regularization of extremal three-point functions involving giant gravitons
Physics Letters B, 2015 In the AdS5/CFT4 set-up, extremal three-point functions involving two giant 1/2 BPS gravitons and one point-like 1/2 BPS graviton, when calculated using semi-classical string theory methods, match the corresponding three-point functions obtained in the ...
Charlotte Kristjansen +2 more
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Electromagnetic quasitopological gravities
Journal of High Energy Physics, 2020 We identify a set of higher-derivative extensions of Einstein-Maxwell theory that allow for spherically symmetric charged solutions characterized by a single metric function f (r) = −g tt = 1/g rr .
Pablo A. Cano, Ángel Murcia
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Unconstrained Lagrangian Variational Principles for the Einstein Field Equations
Entropy, 2023 This paper deals with the problem of establishing a systematic theoretical formulation of variational principles for the continuum gravitational field dynamics of classical General Relativity (GR).
Claudio Cremaschini, Massimo Tessarotto
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Approximation of the classes $W^{r}_{\beta,\infty}$ by three-harmonic Poisson integrals
Karpatsʹkì Matematičnì Publìkacìï, 2019 In the paper, we solve one extremal problem of the theory of approximation of functional classes by linear methods. Namely, questions are investigated concerning the approximation of classes of differentiable functions by $\lambda$-methods of summation ...
U.Z. Hrabova, I.V. Kal'chuk
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On extremal sets without coprimes
, 1994 Ahlswede R, Khachatrian LH. On extremal sets without coprimes. Acta Arithmetica.
Levon Khachatrian +4 more
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Hypernormal distribution theory: Analysis of the set of extreme random variables models
European Scientific e-Journal, 2023 The analysis of the set of extreme random variables models is still an extremely topical topic in many areas of mathematical research in the theory and practice of managing production processes due to its specificity and great interest in finding an expectation and stability indicators set studied in practical economics.
Buychik, Alexander, Komissarov, Peter V.
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Radially Excited AdS5 Black Holes in Einstein–Maxwell–Chern–Simons Theory
Entropy, 2017 In the large coupling regime of the 5-dimensional Einstein–Maxwell–Chern–Simons theory, charged and rotating cohomogeneity-1 black holes form sequences of extremal and non-extremal radially excited configurations.
Jose Luis Blázquez-Salcedo
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Journal of High Energy Physics, 2023 We present a JT gravity set up in the presence of projected ModMax corrections in two dimensions. Our starting point is the Einstein’s gravity in four dimensions accompanied by the ModMax Lagrangian. The 2D gravity action is obtained following a suitable
Hemant Rathi, Dibakar Roychowdhury
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A generalization of the AZ identity
, 1993 Ahlswede R, Cai N. A generalization of the AZ identity. Combinatorica. 1993;13(3):241-247.The identity discovered in [1] can be viewed as a sharpening of the LYM inequality ([3], [4], [5]).
Cai, Ning, Ahlswede, Rudolf
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