I only recently learned that Pascual Jordan, a well known physicist, with significant contributions to the development of early quantum mechanics was a paid up member of the Nazi Party. He in fact joined a SA unit.

Are there any well-known mathematicians who were fascist or Nazi?

I only recently learned that Pascual Jordan, a well known physicist, with significant contributions to the development of early quantum mechanics was a paid member of the Nazi Party. He in fact joined a SA unit.

Are there any well-known mathematicians who were fascist or Nazi?