Showing 261 - 280 results of 596 for search '"curvature"', query time: 0.04s Refine Results
  1. 261

    Legendre Invariance and Geometrothermodynamics Description of the 3D Charged-Dilaton Black Hole by Yiwen Han, XiaoXiong Zeng

    Published 2013-01-01
    “…This result is valid for the black hole, therefore, provides a geometrothermodynamics description of black hole phase transitions in terms of curvature singularities.…”
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    Article
  2. 262

    Estimates for Eigenvalues of the Elliptic Operator in Divergence Form on Riemannian Manifolds by Shenyang Tan, Tiren Huang, Wenbin Zhang

    Published 2015-01-01
    “…We also get universal inequalities for eigenvalues of elliptic operators in divergence form on compact domains of complete submanifolds admitting special functions which include the Hadamard manifolds with Ricci curvature bounded below and any complete manifolds admitting eigenmaps to a sphere.…”
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    Article
  3. 263

    A Family of Integrable Different-Difference Equations, Its Hamiltonian Structure, and Darboux-Bäcklund Transformation by Xi-Xiang Xu, Meng Xu

    Published 2018-01-01
    “…An integrable family of the different-difference equations is derived from a discrete matrix spectral problem by the discrete zero curvature representation. Hamiltonian structure of obtained integrable family is established. …”
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    Article
  4. 264

    A Class of Weingarten Surfaces in Euclidean 3-Space by Yu Fu, Lan Li

    Published 2013-01-01
    “…., 2012) by the equation A(grad H)=-H grad H for the mean curvature function H and the Weingarten operator A. …”
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    Article
  5. 265

    Biharmonic Maps and Laguerre Minimal Surfaces by Yusuf Abu Muhanna, Rosihan M. Ali

    Published 2013-01-01
    “…Estimates of the Gaussian curvature to the Laguerre minimal surface are obtained, and several illustrative examples are given.…”
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    Article
  6. 266

    A Soliton Hierarchy Associated with a Spectral Problem of 2nd Degree in a Spectral Parameter and Its Bi-Hamiltonian Structure by Yuqin Yao, Shoufeng Shen, Wen-Xiu Ma

    Published 2016-01-01
    “…Associated with so~(3,R), a new matrix spectral problem of 2nd degree in a spectral parameter is proposed and its corresponding soliton hierarchy is generated within the zero curvature formulation. Bi-Hamiltonian structures of the presented soliton hierarchy are furnished by using the trace identity, and thus, all presented equations possess infinitely commuting many symmetries and conservation laws, which implies their Liouville integrability.…”
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    Article
  7. 267

    CIVA Confirmation of the effect of Wedge Gap on Amplitude by Edward Ginzel, Robert Ginzel

    Published 2025-02-01
    “…Simulations of gap are made for wear-pin adjustment and for small gaps that can occur when a wedge contoured for curvature on a cylinder of one diameter is used on a cylinder that is slightly larger in diameter. …”
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    Article
  8. 268

    A boundary value problem in the hyperbolic space by P. Amster, G. Keilhauer, M. C. Mariani

    Published 1999-01-01
    “…We consider a nonlinear problem for the mean curvature equation in the hyperbolic space with a Dirichlet boundary data g. …”
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  9. 269

    Willmore-Like Tori in Killing Submersions by Manuel Barros, Óscar J. Garay, Álvaro Pámpano

    Published 2018-01-01
    “…A connection with generalized elastica in the base surface of the Killing submersion is found, which is exploited to analyze Willmore tori in Killing submersions and to construct foliations of Killing submersions made up of Willmore tori with constant mean curvature.…”
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    Article
  10. 270

    Anomaly induced inflation in the minimal quartic extension of Einstein’s gravity by Kerim Demirel, Bayram Tekin

    Published 2024-12-01
    “…Abstract A particular extension of Einstein’s General Relativity up to and including quartic terms in the curvature tensor is minimal in the sense that it has a unique maximally symmetric vacuum and only a massless spin-2 excitation in its spectrum around the vacuum. …”
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    Article
  11. 271

    Weyl-Euler-Lagrange Equations of Motion on Flat Manifold by Zeki Kasap

    Published 2015-01-01
    “…It is well known that a Riemannian manifold is said to be flat if its curvature is everywhere zero. Furthermore, a flat manifold is one Euclidean space in terms of distances. …”
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    Article
  12. 272

    Phase Transitions of the BTZ Black Hole in New Massive Gravity by Yun Soo Myung

    Published 2015-01-01
    “…For m2l2>1/2 with m2 being the mass parameter of fourth-order terms and l2 AdS3 curvature radius, the Hawking-Page phase transition occurs between the BTZ black hole and AdS (thermal) soliton. …”
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    Article
  13. 273

    The Morse Index of Sacks–Uhlenbeck α-Harmonic Maps for Riemannian Manifolds by Amir Shahnavaz, Nader Kouhestani, Seyed Mehdi Kazemi Torbaghan

    Published 2024-01-01
    “…Second, the instability of nonconstant α-harmonic maps is studied with regard to the Ricci curvature criterion of their codomain. Then, we estimate the Morse index for measuring the degree of instability of some particular α-harmonic maps. …”
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  14. 274

    Dimethomorph induces heart and vascular developmental defects by disrupting thyroid hormone in zebrafish embryos by You Wei, Yunlong Meng, Kun Jia, Weijian Lu, Yushan Huang, Huiqiang Lu

    Published 2025-01-01
    “…The results showed a concentration-dependent decrease in survival rate and hatching rate, shortened body length, slowed heart rate, and pericardial edema, body curvature and reduced eye size as DMT exposure concentration increased. …”
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  15. 275

    Infernal instabilities in negative-triangularity plasmas with negative central shear by X.M. Zhang, L. Li, Y.Q. Liu, Z.Y. Dong, J.W. Li, Y. Liang, F.C. Zhong

    Published 2025-01-01
    “…This is mainly due to less favorable (or even unfavorable) average magnetic curvature near the radial location of the minimum safety factor ( ${q_{{\text{min}}}}$ ) as compared to the pos-D configuration. …”
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  16. 276

    Electron Acceleration by Multiple Fast Fermi Reflections at Earth’s Bow Shock by Y. Y. Liu, J. B. Cao, C. M. Liu, Y. T. Song, D. K. Hu

    Published 2025-01-01
    “…Meanwhile, the magnetic field exhibits no variations except an increase in radius of curvature. Based on the results above, we uncover the underlying acceleration scenario. …”
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  17. 277

    A Case of Mucosal Cancer of the Stomach Treated by Endoscopic Submucosal Dissection after Which Nodal Metastasis Became Evident by Takashi Obana, Naotaka Fujita, Yutaka Noda, Dai Hirasawa, Kei Ito, Toshiki Sugawara, Yoshihiro Harada, Tetsuya Oohira, Hiroshi Honda, Takashi Sawai

    Published 2013-01-01
    “…Esophagogastroduodenoscopy (EGD) showed a small protruding lesion and a large superficial elevated lesion on the lesser curvature of the stomach (macroscopic type: 0-I and 0-IIa, resp.). …”
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    Article
  18. 278

    Meridional Considerations of the Centrifugal Compressor Development by C. Xu, R. S. Amano

    Published 2012-01-01
    “…Proper meridional profiles can improve the compressor efficiency and increase the overall pressure ratio at the same blade back curvature.…”
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  19. 279

    Controlled Roof Collapse during Secondary Mining in Coal Mines by Ashleigh Hutchinson

    Published 2012-01-01
    “…We consider the range of values of 𝐵 before the displacement and curvature first become singular at 𝐵=𝐵1. The model predicts that for all practical purposes, the beam will break at the clamped end at the pillar. …”
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  20. 280

    Geometric Mechanics on Warped Product Semi-Slant Submanifold of Generalized Complex Space Forms by Yanlin Li, Ali H. Alkhaldi, Akram Ali

    Published 2021-01-01
    “…Several results for connected, compact warped product semi-slant submanifolds of nearly Kaehler manifolds are obtained, and they are derived in the context of the Hamiltonian, Dirichlet energy function, gradient Ricci curvature, and nonzero eigenvalue of the Laplacian of the warping functions.…”
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