نتایج جستجو برای: signature submanifold

تعداد نتایج: 67597  

2014
Xiaojun Huang Wanke Yin

This is the second article of the two papers, in which we investigate the holomorphic and formal flattening problem of a non-degenerate CR singular point of a codimension two real submanifold in C with n ≥ 3. The problem is motivated from the study of the complex Plateau problem that looks for the Levi-flat hypersurface bounded by a given real submanifold and by the classical complex analysis p...

Journal: :Chaos: An Interdisciplinary Journal of Nonlinear Science 2009

Journal: :Facta Universitatis, Series: Mathematics and Informatics 2017

Journal: :Mathematics 2022

The article introduces invariants of a Riemannian manifold related to the mutual curvature several pairwise orthogonal subspaces tangent bundle. In case one-dimensional subspaces, this is equal half scalar subspace spanned by them, and in complementary mixed curvature. We compared our with Chen proved geometric inequalities intermediate mean squared for submanifold. This gives sufficient condit...

2003
VIKTOR L. GINZBURG

The main theme of this paper is a relative version of the almost existence theorem for periodic orbits of autonomous Hamiltonian systems. We show that almost all low levels of a function on a geometrically bounded symplectically aspherical manifold carry contractible periodic orbits of the Hamiltonian flow, provided that the function attains its minimum along a closed symplectic submanifold. As...

2003
Satoshi Yamaguchi

We investigate an AdS4 ×L2 D5-brane in AdS5 ×X5 space-time, in the context of AdS/dCFT correspondence. Here, X5 is a Sasaki-Einstein manifold and L2 is a submanifold of X5. This brane has the same supersymmetry as the 3 dimensional N = 1 superconformal symmetry if L2 is a special Legendrian submanifold in X5. In this case, this brane is supposed to correspond to a superconformal wall defect in ...

Journal: :Taiwanese Journal of Mathematics 2008

Journal: :Kodai Mathematical Journal 1982

Journal: :Publications of the Research Institute for Mathematical Sciences 2018

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