Zobrazeno 1 - 10
of 1 724
pro vyhledávání: '"Kwong Kwok"'
Autor:
George Kwok Chu Wong
Publikováno v:
Neurointervention, Vol 15, Iss 2, Pp 104-106 (2020)
Externí odkaz:
https://doaj.org/article/c60d22ac4def4d3fb531656353dd6558
Autor:
Kwong, Kwok-Kun, Wang, Xianfeng
We investigate integral conditions involving the mean curvature vector $\vec{H}$ or mixed higher-order mean curvatures, to determine when a codimension-two submanifold $\Sigma$ lies on a shear-free (umbilical) null hypersurface in a spacetime. We gen
Externí odkaz:
http://arxiv.org/abs/2307.09287
Autor:
Kwong, Kwok-Kun, Wei, Yong
Publikováno v:
Advances in Mathematics, Vol. 430, 1 Oct 2023, article no. 109213
In this paper, we establish two families of sharp geometric inequalities for closed hypersurfaces in space forms or other warped product manifolds. Both families of inequalities compare three distinct geometric quantities. The first family concerns t
Externí odkaz:
http://arxiv.org/abs/2303.00930
Autor:
Samuel E. Pate, Bin Wang, Yang Zhang, Bing Shen, Enke Liu, Ivar Martin, J. Samuel Jiang, Xiuquan Zhou, Duck Young Chung, Mercouri G. Kanatzidis, Ulrich Welp, Wai‐Kwong Kwok, Zhi‐Li Xiao
Publikováno v:
Advanced Science, Vol 11, Iss 43, Pp n/a-n/a (2024)
Abstract Emerging from the intricate interplay of topology and magnetism, the giant anomalous Hall effect (AHE) is the most known topological property of the recently discovered kagomé ferromagnetic Weyl semimetal Co3Sn2S2 with the magnetic Co atoms
Externí odkaz:
https://doaj.org/article/3fb3cb9a8f3446ee83c581f2f58764e9
Autor:
Woo PY; Department of Neurosurgery, Kwong Wah Hospital, Yau Ma Tei, Hong Kong., Rehman SU; Department of Neurosurgery, Kwong Wah Hospital, Yau Ma Tei, Hong Kong., Chan Y; Department of Neurosurgery, Kwong Wah Hospital, Yau Ma Tei, Hong Kong., Chu AC; Department of Neurosurgery, Kwong Wah Hospital, Yau Ma Tei, Hong Kong., Kwan MC; Department of Neurosurgery, Kwong Wah Hospital, Yau Ma Tei, Hong Kong., Wong AK; Department of Neurosurgery, Kwong Wah Hospital, Yau Ma Tei, Hong Kong., Wong HT; Department of Neurosurgery, Kwong Wah Hospital, Yau Ma Tei, Hong Kong., Chan KY; Department of Neurosurgery, Kwong Wah Hospital, Yau Ma Tei, Hong Kong.
Publikováno v:
Asian journal of neurosurgery [Asian J Neurosurg] 2021 Apr 08; Vol. 16 (2), pp. 443-444. Date of Electronic Publication: 2021 Apr 08 (Print Publication: 2021).
Autor:
Kwong, Kwok-Kun
We investigate the effect of the average scalar curvature on the conjugate radius, average area of the geodesic spheres, average volume of the metric balls and the total volume of a closed Riemannian manifold $N$ (or more generally $N$ with finite vo
Externí odkaz:
http://arxiv.org/abs/2209.00237
In a recent work of Brendle-Hirsch-Johne, a notion of intermediate curvature was introduced to extend the classical non-existence theorem of positive scalar curvature on torus to product manifolds. In this work, we study the rigidity when the interme
Externí odkaz:
http://arxiv.org/abs/2208.12240
Autor:
Kwong, Kwok-Kun
By refining the volume estimate of Heintze and Karcher \cite{HK}, we obtain a sharp pinching estimate for the genus of a surface in $\mathbb S^{3}$, which involves an integral of the norm of its traceless second fundamental form. More specifically, w
Externí odkaz:
http://arxiv.org/abs/2206.13791
Autor:
Wong, George Kwok Chu
Publikováno v:
Neurointervention, Vol 15, Iss 2, Pp 104-106 (2020)
Neurointervention
Neurointervention
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::452d9b120874db9128e8a7c276c5d73e
http://neurointervention.org/upload/pdf/neuroint-2020-00157.pdf
http://neurointervention.org/upload/pdf/neuroint-2020-00157.pdf
Autor:
Kwong, Kwok-Kun, Lee, Hojoo
We present an elementary criterion to show the length-minimizing property of geodesics for a large class of conformal metrics. In particular, we prove the length-minimizing property of level curves of harmonic functions and the length-minimizing prop
Externí odkaz:
http://arxiv.org/abs/2202.00942