This man's brother is the namesake of a compactification that associates a Hausdorff topological group H with G, and also names a theory that characterizes the gamma function 
This man's brother is the namesake of a compactification that associates a Hausdorff topological group H with G, and also names a theory that characterizes the gamma function with Mollerup. He names the last theory of the so-called "Old Quantum" school along with Kramers and Slater. He names the units that express electron magnetic dipole moment, and the lowest-energy orbital for an electron is known as his "radius." With Werner Heisenberg he formulated the Copenhagen interpretation, which he defended in a series of debates with Einstein. For 10 points, name this scientist whose namesake model of the atom worked for hydrogen, a noted Dane.
This man's brother is the namesake of a compactification that associates a Hausdorff topological group H with G, and also names a theory that characterizes the gamma function with Mollerup.
Niels Henrik David {Bohr}