Does the Math Show A Doubling of the Gravitational Deflection of Starlight?

No, because whatever the math, space is not a surface, so it cannot
bend.
A boat sailing up and downstream takes longer than one sailing the same
distance in a pond.
Contrary to what one may think, the math proves that.
Math cannot prove space curves.
Einstein said he obtained the doubling by the "curving space."
Math pages sums up by saying the doubling is from "curved space."