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For any vector field on R^n it is possible to find a single function that will
act as an integrating factor for the vector field in the sense that the new
"renormalized" vector field will have zero divergence. This result has
extraordinary implications for in physics a zero divergence implies some sort of
conservation law.
As a way to construct (an infinite number of) such "renormalization" consider
the function constructed from the functions Vk that are the components of the
vector field:
Lamda:=(a*V1^p + b*V2^p + ...)^(n/p)
The function lambda is homogeneous of degree n.
When n = 1, any p, and any signature, a = plus or minus 1, b= plus or minus
1,... The classic case is when a=b=...=1 and p=2. Then lambda is the Euclidean norm of the vector field and division of the vector field by this norm is defined as the Gauss Map. If by chance the divergence of this renormalized vector vanishes, then (in three dimensions) the normal resides on a minimal surface.
However, by forming the Jacobian matrix of the normal field, it is always
possible to construct a set of vector "currents" which always have zero
divergence (if n = 1). These vector currents are obtained by premultiplying the
original scaled vector by the matrix adjoint to the Jacobian matrix. The
elements of the Jacobian matrix are the partial derivatives of each of the
components of the original vector Vk. The zero divergence condition generates a
"Maxwell-Ampere" conserved current. Given a Vector potential, A, the induced
conserved current, J, (when n = 1) is not unique, as any value of p, or a,b and
c yields the zero divergence states. When p = 2 and n = 1, is state in some sort of lowest configuration? Are the other surfaces ( p > 2) excited states in some sense? More on this idea later.
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