Prompt
Generate a realistic image of a British mathematician in a formal setting, likely in a university or academic environment. The subject, a male in his 50s or 60s, is seated in a chair, wearing a suit and tie, with a thoughtful expression. In the background, a bookshelf or a mathematical blackboard with equations is visible. Incorporate subtle hints of his achievements, such as a portrait of Isaac Newton or a copy of the Royal Society's publications. The style should be traditional, formal, and dignified, reflecting the subject's academic stature and contributions to mathematics, particularly in the field of number theory, as represented by the Birch and Swinnerton-Dyer conjecture.