Bullen, K. E.

Keith Edward Bullen (1906-1976) was a New Zealand-born mathematician and geophysicist renowned for his seismological research on the Earth's mantle and core structure. He served as Professor of Applied Mathematics at the University of Sydney from 1945 to 1971 and authored influential works like 'An Introduction to the Theory of Seismology' (1947).[1][2][3]