Results 141 to 150 of about 2,699,199 (290)

On the total absolute curvature of manifolds immersed in riemannian manifold. II. [PDF]

, 1970
Bang‐Yen Chen
openalex   +1 more source

Some topological properties of certain Riemannian manifolds with positive curvature [PDF]

, 1973
Toshio Sakaguchi
openalex   +1 more source

On a pseudo umbilical submanifold in a Riemannian manifold of constant curvature [PDF]

, 1973
Masayuki Morohashi
openalex   +1 more source

The Lichnerowicz-Type Laplacians: Vanishing Theorems for Their Kernels and Estimate Theorems for Their Smallest Eigenvalues

Mathematics
In the present paper, we prove several vanishing theorems for the kernel of the Lichnerowicz-type Laplacian and provide estimates for its lowest eigenvalue on closed Riemannian manifolds.
Josef Mikeš, Sergey Stepanov, Irina Tsyganok   +2 more
doaj   +1 more source

On the Riemannian curvature tensor of an almost-product manifold [PDF]

, 1986
Francisco J. Carreras
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Three-dimensional Riemannian manifolds associated with locally conformal Riemannian product manifolds [PDF]

arXiv
A 3-dimensional Riemannian manifold equipped with a tensor structure of type $(1,1)$, whose fourth power is the identity, is considered. This structure acts as an isometry with respect to the metric. A Riemannian almost product manifold associated with such a manifold is also studied.
arxiv  

The local isometric embedding in $\mathbf{R}^3$ of 2-dimensional Riemannian manifolds with nonnegative curvature [PDF]

, 1985
Chang‐Shou Lin
openalex   +1 more source

Free torus actions and twisted suspensions

Forum of Mathematics, Sigma
We express the total space of a principal circle bundle over a connected sum of two manifolds in terms of the total spaces of circle bundles over each summand, provided certain conditions hold.
Fernando Galaz-García, Philipp Reiser
doaj   +1 more source

Curvature, geodesics and the Brownian motion on a Riemannian manifold II—Explosion properties [PDF]

, 1982
Kanji Ichihara
openalex   +1 more source

On some tensors of six-dimensional Hermitian planar submanifolds of Cayley algebra

Дифференциальная геометрия многообразий фигур
In the present note, we consider six-dimensional Hermitian planar sub­manifolds of Cayley algebra. The almost Hermitian structure on such a six-dimensional submanifold is induced by means of so-called Brown — Gray three-fold vector cross products in ...
Banaru G. A.
doaj   +1 more source