Results 41 to 50 of about 2,543 (168)
On the Gauss-Bonnet for the quasi-Dirac operators on the sphere
We investigate examples of Gauss-Bonnet theorem and the scalar curvature for the two-dimensional commutative sphere with quasi-spectral triples obtained by modifying the order-one condition.
Sitarz Andrzej
doaj +1 more source
Holographic superconductivity in Einsteinian Cubic Gravity
We study the condensation of a charged scalar field in a (3 + 1)-dimensional asymptotically AdS background in the context of Einsteinian cubic gravity, featuring a holographic superconductor with higher curvature corrections corresponding to a CFT with a
José D. Edelstein +2 more
doaj +1 more source
Einstein-Gauss-Bonnet Gravity with Extra Dimensions
We consider a theory of modified gravity possessing d extra spatial dimensions with a maximally symmetric metric and a scale factor, whose ( 4 + d ) -dimensional gravitational action contains terms proportional to quadratic curvature scalars ...
Carsten van de Bruck, Chris Longden
doaj +1 more source
Quaternionic Shape Operator and Rotation Matrix on Ruled Surfaces
In this article, we examine the relationship between Darboux frames along parameter curves and the Darboux frame of the base curve of the ruled surface. We derive the equations of the quaternionic shape operators, which can rotate tangent vectors around ...
Yanlin Li, Abdussamet Çalışkan
doaj +1 more source
Mean curvature flow with convex Gauss image [PDF]
36 ...
openaire +2 more sources
Translators of the Gauss curvature flow
A $K^ $-translator is a surface in Euclidean space $\r^3$ that moves by translations in a spatial direction and under the $K^ $-flow, where $K$ is the Gauss curvature and $ $ is a constant. We classify all $K^ $-translators that are rotationally symmetric.
Aydin, Muhittin Evren, López, Rafael
openaire +2 more sources
Lower-dimensional Gauss–Bonnet gravity and BTZ black holes
We consider the D→3 limit of Gauss–Bonnet gravity. We find two distinct but similar versions of the theory and obtain black hole solutions for each. For one theory the solution is an interesting generalization of the BTZ black hole that does not have ...
Robie A. Hennigar +3 more
doaj +1 more source
In Riemannian (differential) geometry, the differences between Euclidean geometry, elliptic geometry, and hyperbolic geometry are understood in terms of curvature. I think Gauss and Riemann captured the essence of geometry in their studies of surfaces and manifolds, and their point of view is spectacularly illuminating.
openaire +1 more source
Gauss Maps of the Mean Curvature Flow [PDF]
final version, to appear in Mathematical Research ...
openaire +2 more sources
Geometric conservation laws for cells or vesicles with membrane nanotubes or singular points
On the basis of the integral theorems about the mean curvature and Gauss curvature, geometric conservation laws for cells or vesicles are proved. These conservation laws may depict various special bionano structures discovered in experiments, such as the
Yin Jie, Yin Yajun
doaj +1 more source

