Osgood, William Fogg

Osgood, William Fogg

(1864–1943) mathematician; born in Boston, Mass. A noted teacher at Harvard (1890–1933), he contributed to development of continuous functions, differential equations, Riemann's theorem, calculus of variations, and space-filling curves. His Lehrbuch der Fuktionetheorie (1907) is still a classic. He loved travel, tennis, golf, and cigars.