Prompt
Generate a realistic image of a 19th-century German mathematician in a formal setting, sitting at a desk with papers and a pen, wearing a suit and tie, with a serious expression. The background should include mathematical symbols and equations, specifically related to group theory, algebra, and analysis. Include a few notable mathematical tools, such as a blackboard with Hölder's inequality, Hölder condition, or Hölder's theorem written on it. The style should be reminiscent of traditional oil paintings, with attention to detail and texture. The subject should be an older man with a beard, resembling a portrait from the late 19th or early 20th century.
