Results 11 to 20 of about 732,786 (72)

High‐Spatiotemporal‐Resolution Ultrasound Flow Imaging to Determine Cerebrovascular Hemodynamics in Alzheimer's Disease Mice Model

open access: yesAdvanced Science, Volume 10, Issue 35, December 15, 2023., 2023
High‐spatiotemporal‐resolution vector micro‐Doppler imaging (HVμDI) based on contrast‐free ultrafast high‐frequency ultrasound imaging is developed to visualize and quantify the cerebrovascular hemodynamics of the wild‐type (WT) and Alzheimer's disease (AD) mice.
Hsin Huang   +8 more
wiley   +1 more source

Casorati Inequalities for Spacelike Submanifolds in Sasaki-like Statistical Manifolds with Semi-Symmetric Metric Connection

open access: yes, 2022
In this paper, we establish some inequalities between the normalized δ-Casorati curvatures and the scalar curvature (i.e., between extrinsic and intrinsic invariants) of spacelike statistical submanifolds in Sasaki-like statistical manifolds ...
Simona Decu
core   +1 more source

Cusps of hyperbolic 4‐manifolds and rational homology spheres

open access: yesProceedings of the London Mathematical Society, Volume 123, Issue 6, Page 636-648, December 2021., 2021
Abstract In the present paper, we construct a cusped hyperbolic 4‐manifold with all cusp sections homeomorphic to the Hantzsche–Wendt manifold, which is a rational homology sphere. By a result of Golénia and Moroianu, the Laplacian on 2‐forms on such a manifold has purely discrete spectrum. This shows that one of the main results of Mazzeo and Phillips
Leonardo Ferrari   +2 more
wiley   +1 more source

Quasicircles and width of Jordan curves in CP1

open access: yesBulletin of the London Mathematical Society, Volume 53, Issue 2, Page 507-523, April 2021., 2021
Abstract We study a notion of ‘width’ for Jordan curves in CP1, paying special attention to the class of quasicircles. The width of a Jordan curve is defined in terms of the geometry of its convex hull in hyperbolic three‐space. A similar invariant in the setting of anti‐de Sitter geometry was used by Bonsante–Schlenker to characterize quasicircles ...
Francesco Bonsante   +3 more
wiley   +1 more source

Inequalities for the Generalized Normalized δ-Casorati Curvatures of Submanifolds in Golden Riemannian Manifolds

open access: yes, 2023
In the present article, we consider submanifolds in golden Riemannian manifolds with constant golden sectional curvature. On such submanifolds, we prove geometric inequalities for the Casorati curvatures.
Ion Mihai, Majid Ali Choudhary
core   +1 more source

Curvature Invariants of Statistical Submanifolds in Kenmotsu Statistical Manifolds of Constant ϕ-Sectional Curvature [PDF]

open access: yes, 2018
In this article, we consider statistical submanifolds of Kenmotsu statistical manifolds of constant ϕ-sectional curvature. For such submanifold, we investigate curvature properties. We establish some inequalities involving the normalized δ-Casorati
Stefan Haesen   +7 more
core   +1 more source

Estimates of B.-Y. Chen’s δˆ-Invariant in Terms of Casorati Curvature and Mean Curvature for Strictly Convex Euclidean Hypersurfaces [PDF]

open access: yes, 2019
B.-Y. Chen’s δˆ-invariants can be estimated in function of other curvature terms through an algebraic process using the AM-GM and AM-QM inequalities. This procedure works on strictly convexsmooth hypersurfaces lying in an Euclidean ambient space, and the
Vajiac, Mihaela, Suceava, Bogdan D.
core   +1 more source

Surfaces with Constant Negative Curvature

open access: yes, 2023
In this paper, we have considered surfaces with constant negative Gaussian curvature in the simply isotropic 3-Space by defined Sauer and Strubeckerr.
İbrahim Gürgil, Semra Kaya Nurkan
core   +1 more source

Pinching Theorems for Statistical Submanifolds in Sasaki-Like Statistical Space Forms

open access: yes, 2018
In this paper, we obtain the upper bounds for the normalized δ -Casorati curvatures and generalized normalized δ -Casorati curvatures for statistical submanifolds in Sasaki-like statistical manifolds with constant curvature. Further,
Ali H. Alkhaldi   +9 more
core   +1 more source

Inequalities on riemannian warped product submersions for vertical casorati curvatures

open access: yes, 2023
The first and second authors introduced Riemannian warped product submersions and discussed interesting fundamental geometric properties of such submersions in Kupeli Erken and Murathan,.
Siddiqui, Aliya Naaz   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy