IOAN MACKENZIE JAMES

Abstract Black-and-white portrait photograph of Ioan Mackenzie James. He is shown from the chest up, smiling slightly while facing the camera. He has wavy, medium-length hair, prominent eyebrows, and wears a dark suit jacket, white shirt, and patterned tie. The background consists of vertically grained wood paneling. A handwritten signature appears below the photograph. Ioan James was one of the small group of mathematicians who developed research in algebraic topology in the UK in the postwar period. This was a topic of intense worldwide activity in the 1950s and 1960s, and James made significant contributions in the area of homotopy theory, leading the group in Oxford from 1960 until his retirement. In later life he broadened his interests and in particular wrote on the history of the subject and on the lives of mathematicians and scientists more generally.