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Real part (left) and imaginary part (right) of  over the Riemann sphere. The inward‐outward bending of a unit sphere is proportional to  and  . The many poles on the northern hemisphere and the essential singularity at   results in a complicated structure at the north pole. The quarter‐space  is not shown. Values of  as a Riemann sphere vectorially added to the Riemann sphere of  . Shown is the part  .
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