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Somebody attached the name John von Neumann to the two-center Neumann expansion of the potential ${\displaystyle {\frac {1}{|\mathbf {r} -\mathbf {r} '|}}}$. However, the expansion is due to Carl Gottfried Neumann and published decades before John was born. P.wormer ( talk) 07:34, 16 April 2024 (UTC) reply

Addition: the Neumann expansion was published by Carl G. Neumann in chapter 13 and 14 of Vorlesungen über die Theorie des Potentials und der Kugelfunctionen von Franz Neumann; herausgegeben von Carl Neumann. B.G. Teubner Verlag, Leipzig (1887). (Carl Neumann was the son of Franz Neumann.) P.wormer ( talk) 11:26, 16 April 2024 (UTC) reply