Results 41 to 50 of about 1,771,776 (376)
Stochastic Primal-Dual Method on Riemannian Manifolds of Bounded Sectional Curvature [PDF]
International Conference on Machine Learning and Applications, 2017 We study a stochastic primal-dual method for optimizing functions on elliptic (sub)manifolds– Riemannian (sub)manifolds with a positive bounded sectional curvature.
M. B. Khuzani, Na Li
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Study of Morphometry of Clavicle in East Indian Population [PDF]
International Journal of Anatomy Radiology and Surgery, 2021 Introduction: The clavicle is a subcutaneous bone most frequently fractured at the junction of medial 2/3rd and lateral 1/3rd of its shaft. The knowledge about the morphometry of clavicle is important for surgeons as well as orthopaedic surgeons. Aim:
BANANI KUNDU +2 more
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The curvature of contact structure on 3-manifolds [PDF]
, 2008 We study the sectional curvature of plane distributions on 3-manifolds. We show that if the distribution is a contact structure it is easy to manipulate this curvature. As a corollary we obtain that for every transversally oriented contact structure on a
Candel +5 more
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Cross section of curvature radiation absorption [PDF]
Astronomy & Astrophysics, 2018 When treating the absorption of light, it is instructive to focus on the absorption coefficient related to the probability of photons to survive while traversing a layer of material. From the point of view of particles doing the absorption, however, the elementary interaction of the particle with the photon is best described by the corresponding cross ...
Locatelli, Nicola, Ghisellini, Gabriele
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Reduction of manifolds with semi-negative holomorphic sectional curvature [PDF]
, 2017 In this note, we continue the investigation of a projective Kähler manifold M of semi-negative holomorphic sectional curvature H. We introduce a new differential geometric numerical rank invariant which measures the number of linearly independent truly ...
Gordon Heier +3 more
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Hirzebruch manifolds and positive holomorphic sectional curvature [PDF]
Annales de l'Institut Fourier, 2016 This paper is the first step in a systematic project to study examples of Kahler manifolds with positive holomorphic sectional curvature ($H > 0$). Previously Hitchin proved that any compact Kahler surface with $H>0$ must be rational and he constructed ...
Bo Yang, F. Zheng
semanticscholar +1 more source
Qualar curvatures of pseudo Riemannian manifolds and pseudo Riemannian submanifolds
AIMS Mathematics, 2021 Some relations involving the qualar and null sectional curvatures for a pseudo Riemannian manifold are obtained. These curvatures are also investigated for pseudo-Riemannian submanifolds.
Mehmet Gülbahar
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Hermitian metrics of positive holomorphic sectional curvature on fibrations [PDF]
Mathematische Zeitschrift, 2017 The main result of this note essentially is that if the base and fibers of a compact fibration carry Hermitian metrics of positive holomorphic sectional curvature, then so does the total space of the fibration.
Ananya Chaturvedi, Gordon Heier
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Nonconnected moduli spaces of nonnegative sectional curvature metrics on simply connected manifolds [PDF]
, 2016 We show that in each dimension 4n+3 , n⩾1 , there exist infinite sequences of closed smooth simply connected manifolds M of pairwise distinct homotopy type for which the moduli space of Riemannian metrics with nonnegative sectional curvature has ...
Anand Dessai +2 more
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On generalized semisymmetric Riemannian manifolds
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2013 There are several generalizations of the concept of semi-symmetric Riemannian manifolds. In the present paper, we consider some special types of generalized semi-symmetric Riemannian manifolds with positive or negative defined curvature operator or ...
Josef Mikes, Sergey E. Stepanov
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