Results 41 to 50 of about 43,102 (116)

Halfspace Depth

WIREs Computational Statistics, Volume 17, Issue 3, September 2025.
The halfspace depth generalizes quantiles to multivariate data. This is a bagplot—a depth‐based analog of a boxplot. It succinctly captures the geometry of the bivariate dataset (blue/red points) and identifies the four red points in the top left corner as deviating from the general pattern of the data.
Stanislav Nagy
wiley   +1 more source

Spinorial Characterization of CR Structures, I [PDF]

, 2014
We characterize certain CR structures of arbitrary codimension (different from 3, 4 and 5) on Riemannian Spin$^c$ manifolds by the existence of a Spin$^c$ structure carrying a strictly partially pure spinor field.
Hererra, Rafael, Nakad, Roger
core  

Slant Riemannian maps from almost Hermitian manifolds

, 2012
As a generalization of holomorphic submersions, anti-invariant submersions and slant submersions, we introduce slant Riemannian maps from almost Hermitian manifolds to Riemannian manifolds.
Sahin, Bayram
core  

On positive scalar curvature and moduli of curves

, 2018
In this article we first show that any finite cover of the moduli space of closed Riemann surfaces of genus $g$ with $g\geq 2$ does not admit any Riemannian metric $ds^2$ of nonnegative scalar curvature such that $ds^2 \succ ds_{T}^2$ where $ds_{T}^2$ is
Liu, Kefeng, Wu, Yunhui
core  

On Isosystolic Inequalities for T^n, RP^n, and M^3

, 2013
If a closed smooth n-manifold M admits a finite cover whose Z/2Z-cohomology has the maximal cup-length, then for any riemannian metric g on M, we show that the systole Sys(M,g) and the volume Vol(M,g) of the riemannian manifold (M,g) are related by the ...
Nakamura, Kei
core  

Sasakian Geometry, Holonomy, and Supersymmetry

, 2007
In this expository article we discuss the relations between Sasakian geometry, reduced holonomy and supersymmetry. It is well known that the Riemannian manifolds other than the round spheres that admit real Killing spinors are precisely Sasaki-Einstein ...
Boyer, Charles P., Galicki, Krzysztof
core   +3 more sources

Quasi Sasakian manifold endowed with vanishing pseudo quasi conformal curvature tensor. [PDF]

MethodsX
AlHusseini FH, Abood HM.
europepmc   +1 more source

Ricci curvature bounds and rigidity for non-smooth Riemannian and semi-Riemannian metrics. [PDF]

Manuscr Math
Kunzinger M, Ohanyan A, Vardabasso A.
europepmc   +1 more source

Revisiting Volterra defects: geometrical relation between edge dislocations and wedge disclinations. [PDF]

R Soc Open Sci
Kobayashi S, Takemasa K, Tarumi R.
europepmc   +1 more source

Comparison theorems on H-type sub-Riemannian manifolds. [PDF]

Calc Var Partial Differ Equ
Baudoin F, Grong E, Rizzi L, Vega-Molino S.   +3 more
europepmc   +1 more source