Results 101 to 110 of about 94,728 (213)

Radar Target Detection with K-Nearest Neighbor Manifold Filter on Riemannian Manifold

Advances in Mathematical Physics
In this paper, we propose a K-nearest neighbor manifold filter on the Riemannian manifold and apply it to signal detection within clutter. In particular, the correlation and power of sample data in each cell are modeled as an Hermitian positive definite (
Dongao Zhou, Weilong Yang, Zhaopeng Liu, Manhui Sun   +3 more
doaj   +1 more source

Conformal transformations of compact Riemannian manifolds [PDF]

, 1962
Morio Obata
openalex   +1 more source

On Riemannian warped-twisted product submersions

AIMS Mathematics
In this paper, we introduce the concepts of Riemannian warped-twisted product submersions and examine their fundamental properties, including total geodesicity, total umbilicity and minimality.
Richa Agarwal, Fatemah Mofarreh, Sarvesh Kumar Yadav, Shahid Ali, Abdul Haseeb   +4 more
doaj   +1 more source

Transitive groups of quasi-isometries and growth [PDF]

Rendiconti di Matematica e delle Sue Applicazioni, 2001
If G is a transitive Lie group of quasi-isometries of a Riemannian manifold (M,g), the growth-type of G is equal to the Riemannian growth of (M,g).
Dmitri Alekseevsky, Renata Grimaldi, Ignazia Maniscalco   +2 more
doaj  

[Detection algorithm of paroxysmal atrial fibrillation with sparse coding based on Riemannian manifold]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2020
Meng X, Liu M, Xiong P, Chen J, Yang L, Liu X.   +5 more
europepmc   +1 more source

Partially conformal transformations with respect to $(m-1)$-dimensional distributions of $m$-dimensional Riemannian manifolds [PDF]

, 1965
Shûkichi Tanno
openalex   +1 more source

Left-invariant paracontact metric structure on a group Sol

Дифференциальная геометрия многообразий фигур
Among Thurston's famous list of eight three-dimensional geometries is the geometry of the manifold Sol. The variety Sol is a connected simply connected Lie group of real matrices of a special form.
M. V. Sorokina, O. P. Surina
doaj   +1 more source

Riemannian manifolds of constant 𝑘-nullity [PDF]

, 1969
Aaron Rosenthal
openalex   +1 more source

Multiple solutions for nonlinear elliptic equations on Riemannian manifolds

Electronic Journal of Differential Equations, 2009
Let $(mathcal{M}, g)$ be a compact, connected, orientable, Riemannian $n$-manifold of class $C^{infty}$ with Riemannian metric $g$ $(ngeq 3)$. We study the existence of solutions to the equation $$ -varepsilon^2Delta_{g} u+V(x)u=K(x)|u|^{p-2}u ...
Jianfu Yang, Wenjing Chen
doaj  

Integral inequalities in compact orientable manifolds, Riemannian or Kählerian [PDF]

, 1968
Yoshiko Watanabe
openalex   +1 more source