Distinct asymptotic directions for the components of a finite point-charge electrical field

Let F=(X,Y)F=(X,Y) be the electrical field generated by finitely many point charges in the plane. In the Type I and Type II domains, consider the asymptotic directions of the zero sets X=0X=0 and Y=0Y=0.

Distinct-asymptotic-directions conjecture. The asymptotic directions of the points in the zero sets X=0X=0 and Y=0Y=0, in the Type I and Type II domains, are distinct. Hence, outside some large disk, there are no common zeros in either domain for XX and YY; equivalently, FF has no zeros far from the origin.

This conjecture would establish the absence of common zeros at infinity for the two components of the field. The source does not provide a resolution.

Sources & referencesView supporting material

Primary source

Tamas Erdelyi, Joseph Rosenblatt and Rebecca Rosenblatt, “Asymptotic Directions for the Zero Sets of the Components of an Electrical Field from a Finite Number of Point Charges on the Plane Part II”, arXiv:2208.12857 (2022).

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