Covariant differentiation on 2-sphere

In summary, the conversation discussed the calculation of ∇θ∇\phiVθ and ∇\phi∇θVθ for a 2-sphere S2 with coordinates xμ=(θ,\phi) and metric ds2=dθ2+sin2θ d\phi2, using the formula ##\nabla_{i}\mathbb{e}_j = \left\{\begin{array}\\{ij}\\{k}\end{array}\right\}\mathbb{e}_k##. No further details were provided.
  • #1
felixphysics
3
0
Consider a 2-sphere S2 with coordinates xμ=(θ,[itex]\phi[/itex]) and metric ds2=dθ2+sin2θ d[itex]\phi[/itex]2 and a vector [itex]\vec{V}[/itex] with components Vμ=(0,1). Calculate the following quantities.

θ[itex]\phi[/itex]Vθ

[itex]\phi[/itex]θVθ
 
Physics news on Phys.org
  • #2
felixphysics said:
Consider a 2-sphere S2 with coordinates xμ=(θ,[itex]\phi[/itex]) and metric ds2=dθ2+sin2θ d[itex]\phi[/itex]2 and a vector [itex]\vec{V}[/itex] with components Vμ=(0,1). Calculate the following quantities.

θ[itex]\phi[/itex]Vθ

[itex]\phi[/itex]θVθ
[Mods should move this to calculus and beyond, methinks.]

I believe the formula for this case would be ##\nabla_{i}\mathbb{e}_j = \left\{\begin{array}\\{ij}\\{k}\end{array}\right\}\mathbb{e}_k##. However, you've shown no work, so I can't help you.
 

FAQ: Covariant differentiation on 2-sphere

What is covariant differentiation on 2-sphere?

Covariant differentiation on 2-sphere is a mathematical concept used in differential geometry. It is a way of measuring how a vector field changes as it moves along the surface of a 2-sphere. It takes into account the curvature of the surface and allows for a more accurate description of the behavior of vectors on the 2-sphere.

How is covariant differentiation different from ordinary differentiation?

Covariant differentiation takes into account the curvature of the surface, while ordinary differentiation does not. This means that covariant differentiation can account for the non-Euclidean geometry of the 2-sphere, while ordinary differentiation is limited to Euclidean geometry.

What are the applications of covariant differentiation on 2-sphere?

Covariant differentiation on 2-sphere has many applications in mathematics, physics, and engineering. It is used in the study of curved spaces, such as general relativity, and is also used in the analysis of fluid flow and heat transfer on curved surfaces.

Can covariant differentiation on 2-sphere be extended to higher dimensions?

Yes, covariant differentiation can be extended to higher dimensions. In fact, it is a fundamental concept in differential geometry and is used in the study of higher-dimensional spaces, such as 3-spheres and hypersurfaces.

Is there a physical interpretation of covariant differentiation on 2-sphere?

Yes, there is a physical interpretation of covariant differentiation on 2-sphere. It can be thought of as a way to describe how vectors behave on a curved surface, taking into account the effects of curvature. This has many applications in physics, such as in the study of gravitational fields and fluid flow on curved surfaces.

Back
Top