Results 31 to 40 of about 2,268,510 (323)

Measuring Stereotype Threat at Math and Language Arts in Secondary School: Validation of a Questionnaire

open access: yesFrontiers in Psychology, 2021
A stereotype threat arises when a negative stereotype about group to which an individual belongs is activated. It affects the achievement and interest of students in a particular academic domain, e.g., girls at math or boys at language arts. Hence, it is
Sylwia Bedyńska   +2 more
doaj   +1 more source

The Batchelor Spectrum of Passive Scalar Turbulence in Stochastic Fluid Mechanics at Fixed Reynolds Number [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2019
In 1959 Batchelor predicted that the stationary statistics of passive scalars advected in fluids with small diffusivity k should display a k−1 power spectrum along an inertial range contained in the viscous‐convective range of the fluid model.
J. Bedrossian   +2 more
semanticscholar   +1 more source

Trans-Sasakian static spaces

open access: yesResults in Physics, 2021
Static spaces (with perfect fluids) appeared in a natural way both in physics (cf. Hawking and Ellis, 1975) and mathematics (cf. A. Fischer and J. Marsden, Duke Math. J. 42 (3) (1975), 519–547).
Ibrahim Al-Dayel   +2 more
doaj   +1 more source

Prescribing Morse Scalar Curvatures: Pinching and Morse Theory [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2019
We consider the problem of prescribing conformally the scalar curvature on compact manifolds of positive Yamabe class in dimension n≥5 . We prove new existence results using Morse theory and some analysis on blowing‐up solutions under suitable pinching ...
A. Malchiodi, Martin Gebhard Mayer
semanticscholar   +1 more source

On the Geometry of Three-dimensional Pseudo-Riemannian Homogeneous Spaces. I [PDF]

open access: yesИзвестия Саратовского университета. Новая серия. Серия Математика. Механика. Информатика, 2020
The problem of establishing links between the curvature and the topological structure of a manifold is one of the important problems of geometry. In general, the purpose of the research of manifolds of various types is rather complicated.
Natal’ya Pavlovna Mozhey
doaj   +1 more source

Scalar curvatures in almost Hermitian geometry and some applications [PDF]

open access: yesScience China Mathematics, 2019
On an almost Hermitian manifold, there are two Hermitian scalar curvatures associated with a canonical Hermitian connection. In this paper, two explicit formulas on these two scalar curvatures are obtained in terms of the Riemannian scalar curvature ...
Jixiang Fu, Xianchao Zhou
semanticscholar   +1 more source

On the Geometry of Three-dimensional Pseudo-Riemannian Homogeneous Spaces. II [PDF]

open access: yesИзвестия Саратовского университета. Новая серия. Серия Математика. Механика. Информатика, 2020
The problem of establishing links between the curvature and the topological structure of a manifold is one of the important problems of the geometry. In general, the purpose of the research of manifolds of various types is rather complicated.
Mozhey, Natal’ya Pavlovna
doaj   +1 more source

Interior curvature estimates for hypersurfaces of prescribing scalar curvature in dimension three [PDF]

open access: yesAmerican Journal of Mathematics, 2019
:We prove a priori interior curvature estimates for hypersurfaces of prescribing scalar curvature equations in $\mathbb{R}^{3}$. The method is motivated by the integral method of Warren and Yuan.
Guohuan Qiu
semanticscholar   +1 more source

Prescribing Morse Scalar Curvatures: Blow-Up Analysis [PDF]

open access: yesInternational mathematics research notices, 2018
We study finite-energy blow-ups for prescribed Morse scalar curvatures in both the subcritical and the critical regime. After general considerations on Palais–Smale sequences, we determine precise blow-up rates for subcritical solutions: in particular ...
A. Malchiodi, Martin Gebhard Mayer
semanticscholar   +1 more source

Remarks on critical metrics of the scalar curvature and volume functionals on compact manifolds with boundary [PDF]

open access: yesPacific Journal of Mathematics, 2017
We provide a general B\"ochner type formula which enables us to prove some rigidity results for $V$-static spaces. In particular, we show that an $n$-dimensional positive static triple with connected boundary and positive scalar curvature must be ...
H. Baltazar, E. Ribeiro
semanticscholar   +1 more source

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