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Encyclopedia > Fundamental theorem of vector analysis

The fundamental theorem of vector analysis states that any vector field meeting certain conditions (of decaying towards infinity) can be resolved into irrotational and solenoidal component vector fields.


This implies that any vector field E meeting certain decay criteria can be considered to be generated by a pair of potentials: a scalar potential φ and a vector potential A. Then the negative gradient of the scalar potential is equated with the irrotational component, and the curl of the vector potential is equated with the solenoidal component:

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  Results from FactBites:
 
Vector calculus Summary (1351 words)
Vector analysis is the multi-dimensional analogue of single-variable calculus.
It states that the integral of the (normal component of the) curl of a vector field over a bounded surface is equal to the integral of the (tangential component of the) vector field along the boundary of the surface.
Vector calculus (also called vector analysis) is a field of mathematics concerned with multivariate real analysis of vectors in two or more dimensions.
Vector potential - Wikipedia, the free encyclopedia (274 words)
In vector calculus, a vector potential is a vector field whose curl is a given vector field.
This is analogous to a scalar potential, which is a scalar field whose negative gradient is a given vector field.
A generalization of this theorem is the Helmholtz decomposition which states that any vector field can be decomposed as a sum of a solenoidal vector field and an irrotational vector field.
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