For ten points, identify this country home to Bernard Riemann and Carl Friedrich Gauss.
This country's  rst Antarctic expedition was named for one of its mathemati- cians. A mathematician from this country names a question mark function with fractal properties. Another mathematician from this country names a plane also known as the inversive plane. A mathematician from this country names the diagrams used to represent partially ordered sets, while another mathemati- cian from this country names   surfaces which are one-dimensional complex manifolds. One mathematician from this country names the cgs unit of  ux density, while a physicist from this country names the SI unit of resistance. For ten points, identify this country home to Bernard Riemann and Carl Friedrich Gauss.
This country's  rst Antarctic expedition was named for one of its mathemati- cians.
Germany [accept Deutschland, liberally accept historical names like  German Empire  or  Third Reich  and the same in German, prompt on Prussia and variants thereof]