Is there a divergence theorem for higher dimensions and what is it called?

In summary, the fundamental theorem of calculus is similar to the divergence theorem, but deals with a ball in R^1 instead of R^3. It relates the contents inside the ball to its boundary, just like the divergence theorem relates the contents inside a volume to its surface. There is a similar theorem for hyper volumes in higher dimensions, called Stoke's Theorem, which is considered one of the most beautiful theorems. It is used in differential geometry and topology and can be extended to define the exterior derivative in discrete versions of differential geometry.
  • #1
Jonny_trigonometry
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The fundamental theorem of calculus is basically the divergence theorem but dealing with a ball in R^1 instead of a ball in R^3. The fundamental theorem of Calculus relates the stuff inside the ball to its boundary, just like how the divergence theorem relates the stuff inside a volume with its surface. I was just wondering if there is such a thing as a divergence theorem which relates the stuff inside a hyper volume (a volume in R^4) to a volume--its boundary (a volume in R^3)--and so on for higher R^n. Is there such a theorem and if so, what is it called?
 
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  • #2
It's called Stoke's Theorem, and is one of the most beautiful theorems about. If only more people knew differential geometry, I'm sure it could beat out that old crap by Euler :wink:

[tex]\int_M d\omega = \int_{\partial M} \omega[/tex]

Where M is an m-dimensional oriented manifold and omega is an (m+1)-form. Unfortunately, it's beyond my ability to really state it formally without going into the precise definitions.

This theorem also sits at the focus point of various topics in topology. It's also possible to extend this theorem in such way that a discrete version of differential geometry can be made, where the definition of exterior derivative can be defined through requiring this theorem as an axiom.
 
  • #3


Yes, there is such a theorem and it is called the generalized Stokes' theorem. It extends the divergence theorem to higher dimensional spaces, such as R^4 and beyond. It also relates the "stuff" inside a hyper volume to its boundary, just like how the divergence theorem relates the "stuff" inside a volume to its surface. The generalized Stokes' theorem is an important tool in vector calculus and has many applications in physics and engineering. It is a fundamental theorem that helps us understand the relationships between different dimensions and volumes in higher dimensional spaces.
 

What is the Divergence Theorem for R^n?

The Divergence Theorem for R^n is a mathematical theorem that relates the surface integral of a vector field over a closed surface to the triple integral of the divergence of the vector field over the region bounded by that surface. In simpler terms, it states that the net outward flux of a vector field through a closed surface is equal to the volume integral of the divergence of that vector field within the enclosed region.

What is the significance of the Divergence Theorem?

The Divergence Theorem is a fundamental tool in vector calculus and is used to simplify and solve a variety of physical problems involving fluid flow, electromagnetism, and more. It allows for the conversion of a complicated surface integral into a simpler triple integral, making it easier to calculate and visualize the behavior of vector fields.

How is the Divergence Theorem derived?

The Divergence Theorem is derived from Green's Theorem in 2 dimensions and the more general Stokes' Theorem in 3 dimensions. By applying these theorems and using the concept of a flux, the Divergence Theorem can be proven to hold for any vector field in R^n.

What are the conditions for the Divergence Theorem to hold?

In order for the Divergence Theorem to hold, the vector field must be continuous and have a well-defined divergence within the region bounded by the closed surface. The surface itself must also be smooth and orientable, meaning that it has a consistent outward normal vector at every point.

Are there any applications of the Divergence Theorem in real-world problems?

Yes, the Divergence Theorem has many practical applications in fields such as fluid dynamics, electromagnetism, and heat transfer. It is used to calculate fluid flow rates, electric and magnetic fluxes, and heat flows in various engineering and scientific problems.

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