Stokes theorem equivalent for cross product line integral

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Homework Help Overview

The discussion revolves around the application of Stokes' theorem in the context of a closed path integral involving the cross product of a vector field with a differential line segment. The original poster seeks to understand if there exists a vector calculus theorem analogous to Stokes' theorem that could facilitate evaluating this integral without direct computation.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants explore the possibility of a theorem similar to Stokes' theorem for the cross product line integral. Some question the existence of such a theorem, while others suggest a specific expression that may relate to the original query.

Discussion Status

The discussion is ongoing, with some participants expressing uncertainty about the existence of a relevant theorem. A potential expression has been introduced, but no consensus has been reached regarding its applicability or correctness.

Contextual Notes

There appears to be a lack of clarity regarding the conditions under which a theorem analogous to Stokes' theorem might apply to the cross product line integral. Participants are also referencing external threads for additional context and potential methods.

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"Stokes theorem" equivalent for cross product line integral

Homework Statement


I am aware that the vector path integral of a closed curve under certain conditions is equivalent to the flux of of the curl of the vector field through any surface bound by the closed path. In other words, Stokes theorem:

\oint_S \textbf{F} \cdot d\textbf{r} = \int_S \nabla \times \textbf{F} \cdot d\textbf{S}

But how about the closed path integral of the cross product of a vector field with the differential line segment:

\oint \textbf{F} \times d\textbf{r}

Is there any vector calculus theorem paralleling the Stokes theorem for a closed path integral I can use without me having to evaluate the line integral directly?
 
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Anyone?
 


As far as I know, no, there isn't any such theorem.
 


\oint_{C} \mathrm{d} \mathbf{l} \times \mathbf{F} = \int \int_{S} \left( \mathrm{d} \mathbf{S} \times \nabla \right) \times \mathbf{F}, this one?
 

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