نتایج جستجو برای: curvatures

تعداد نتایج: 3711  

Journal: :Journal of Differential Geometry 1993

Journal: :Journal of Differential Geometry 1968

Journal: :Journal für die reine und angewandte Mathematik (Crelles Journal) 2011

Journal: :Memoirs of the Faculty of Science, Kyushu University. Series A, Mathematics 1981

Journal: :Proceedings of the Japan Academy, Series A, Mathematical Sciences 1980

Journal: :Honam Mathematical Journal 2016

Journal: :Mathematics 2023

The curvature characteristics of particular classes Finsler spaces, such as homogeneous are one the major issues in geometry. In this paper, we have obtained expression for S-curvature space with a generalized Matsumoto metric and demonstrated that isotropic has to vanish S-curvature. We also derived mean Berwald by using formula

Journal: :Asian Journal of Mathematics 2022

We show that after forming a connected sum with homotopy sphere, all (2j-1)-connected 2j-parallelisable manifolds in dimension 4j+1, j > 0, can be equipped Riemannian metrics of 2-positive Ricci curvature. The condition curvature is defined to mean the two smallest eigenvalues tensor positive at every point. This result counterpart previous authors concerning existence on highly dimensions 4j-1...

Journal: :Computer Aided Geometric Design 1992
Franz-Erich Wolter Seamus T. Tuohy

This paper presents a method to compute curvatures of a surface patch S obtained from a degenerate representation defined over a rectangular domain. To compute curvatures at a point 4 in S where the surface representation is degenerate one has to assume that the point sef S has a tangent plane and well defined curvatures at the point 4 where the curvatures are to be computed. Our computation me...

Journal: :Siam Journal on Optimization 2021

This paper presents an accelerated composite gradient (ACG) variant, referred to as the AC-ACG method, for solving nonconvex smooth minimization problems. As opposed well-known ACG variants that are based on either a known Lipschitz constant or sequence of maximum observed curvatures, current one is average all past curvatures. More specifically, uses positive multiple curvatures until previous...

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