Results 81 to 90 of about 4,250 (145)
On Local Congruence of Immersions in Homogeneous or Nonhomogeneous Spaces
Symmetry, Integrability and Geometry: Methods and Applications, 2013 We show how to find a complete set of necessary and sufficient conditions that solve the fixed-parameter local congruence problem of immersions in G-spaces, whether homogeneous or not, provided that a certain kth order jet bundle over the G-space admits ...
Jeongoo Cheh
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Sudden breakdown of effective field theory near cool Kerr-Newman black holes
Journal of High Energy PhysicsIt was recently shown that (near-)extremal Kerr black holes are sensitive probes of small higher-derivative corrections to general relativity. In particular, these corrections produce diverging tidal forces on the horizon in the extremal limit.
Gary T. Horowitz +3 more
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Schwarzian derivatives of convex mappings
Annales Academiae Scientiarum Fennicae Mathematica, 2011 Let \(D\) be the unit disc. In this remarkably elegant paper the authors prove that \(\| Sf\|\leq 2\) for any convex domain \(G= f(D)\) (\(\| Sf\|\) is the Schwarzian norm of \(f\)). Moreover, if \(\| Sf\|= 2\), no convex function \(f\) maps \(D\) onto a quasidisk. The authors use the fact that \(Sf= {2\varphi'\over (1-\varphi)^2}\) for \(|\varphi|\leq
Chuaqui, Martin +2 more
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Lagrange schwarzian derivative and symplectic Sturm theory [PDF]
Annales de la Faculté des sciences de Toulouse : Mathématiques, 1993 The scalar Schwarzian derivative \(S\{f\}=f'''/f'-(3/2)(f''/f')^ 2\) of \(C^ 3\)-function \(f\), \(f'\neq 0\) is very important for example in the theory of linear differential equations [see e.g., \textit{F. Neuman}, Global properties of linear ordinary differential equations, Kluwer Academic Publishers (1991)]. The main property of this derivative is
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Solvable models of quantum black holes: a review on Jackiw-Teitelboim gravity. [PDF]
Living Rev Relativ, 2023 Mertens TG, Turiaci GJ.
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Schwarzian Derivative Revisited
, 2006 The Boolean-algebraic structure of the so-called Schwarzian derivative is investigated. A sufficient condition for a function of several variables to behave chaotically, which concerns its associated Schwarzian derivative, is also given.
Çağlar, Mert +2 more
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Higher Schwarzian operators and combinatorics of the Schwarzian derivative
Mathematische Annalen, 1996 A family of Möbius invariant nonlinear differential operators (higher Schwarzian operators) is constructed in the context of the best Möbius approximations of analytic functions in one complex variable. Viewing the Schwarzian equation purely algebraically, we obtain a sequence of polynomials (Schwarzian polynomials) with positive integral coefficients ...
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On the Families of Hyperbolic Derivatives with the Quasi-L ̈owner Dynamics of Pre-Schwarzians [PDF]
Учёные записки Казанского университета: Серия Физико-математические науки, 2016 The dynamics of the critical point set for the hyperbolic derivatives of the family of holomorphic functions in the unit disk with pre-Schwarzians satisfying the equation of the quasi-L wner type is studied.
A.V. Kazantsev
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Globally defined Carroll symmetry of gravitational waves
Nuclear Physics BThe local Carroll symmetry of a gravitational wave found in Baldwin-Jeffery-Rosen coordinates is extended to a globally defined one by switching to Brinkmann coordinates.
M. Elbistan, P.M. Zhang, P.A. Horvathy
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Extreme Electron Acceleration with Fixed Radiation Energy. [PDF]
Entropy (Basel), 2022 Good MRR, Singha C, Zarikas V.
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