Results 21 to 30 of about 4,579 (296)
AdS/BCFT and Island for curvature-squared gravity
Journal of High Energy Physics, 2022 In this paper, we investigate AdS/BCFT for curvature-squared gravity. To warm up, we start with Gauss-Bonnet gravity. We derive the one point function of stress tensor and show that the central charge related to the norm of displacement operator is ...
Qi-Lin Hu +3 more
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On a Surface Associated to the Catalan Triangle
Axioms, 2022 We define a surface that interpolates the ballot numbers in the Catalan triangle corresponding to every pair of nonnegative integers (except for the origin).
Marilena Jianu +5 more
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Lietuvos Matematikos Rinkinys, 2010 In this article we generalize some classical formulas for curvatures of hypersurfaces in the n-dimensional Euclidean space using the homogeneous formulas.
Kazimieras Navickis
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Holographic superconductors in 4D Einstein-Gauss-Bonnet gravity with backreactions
Physics Letters B, 2021 We construct the holographic superconductors away from the probe limit in the consistent D→4 Einstein-Gauss-Bonnet gravity. We observe that, both for the ground state and excited states, the critical temperature first decreases then increases as the ...
Jie Pan +5 more
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Variational properties of the Gauss–Bonnet curvatures [PDF]
Calculus of Variations and Partial Differential Equations, 2007 The Gauss-Bonnet curvature of order $2k$ is a generalization to higher dimensions of the Gauss-Bonnet integrand in dimension $2k$, as the usual scalar curvature generalizes the two dimensional Gauss-Bonnet integrand. In this paper, we evaluate the first variation of the integrals of these curvatures seen as functionals on the space of all Riemannian ...
openaire +2 more sources
Horndeski gravity as D → 4 limit of Gauss-Bonnet
Physics Letters B, 2020 We propose a procedure for the D→4 limit of Einstein-Gauss-Bonnet (EGB) gravity that leads to a well defined action principle in four dimensions. Our construction is based on compactifying D-dimensional EGB gravity on a (D−4)-dimensional maximally ...
H. Lü, Yi Pang
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Curvature-driven instabilities in thin active shells
Royal Society Open Science, 2022 Spontaneous material shape changes, such as swelling, growth or thermal expansion, can be used to trigger dramatic elastic instabilities in thin shells.
Andrea Giudici, John S. Biggins
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Helicoidal surfaces in Minkowski space with constant mean curvature and constant Gauss curvature [PDF]
Open Mathematics, 2014 We classify all helicoidal non-degenerate surfaces in Minkowski space with constant mean curvature and constant Gauss curvature whose generating curve is a graph of a polynomial or a Lorentzian circle.
López Rafael, Demir Esma
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Intrinsic curvature of curves and surfaces and a Gauss-Bonnet theorem in the Heisenberg group [PDF]
, 2017 We use a Riemannnian approximation scheme to define a notion of intrinsic Gaussian curvature for a Euclidean C2 -smooth surface in the Heisenberg group H away from characteristic points, and a notion of intrinsic signed geodesic curvature for Euclidean ...
Tyson, Jeremy T +5 more
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PAPER MODELS OF SURFACES WITH CURVATURE CREATIVE VISUALIZATION LABS BALTIMORE JOINT MATHEMATICS MEETINGS [PDF]
, 2009 A model of a cone can be constructed from a piece of paper by removing a wedge and taping the edges together. The paper models discussed here expand on this idea (one or more wedges are added and/or removed).
ISERI, HOWARD
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