Fritz David Carlson (23 July 1888 – 28 November 1952) was a Swedish mathematician. After the death of Torsten Carleman, he headed the Mittag-Leffler Institute. Carlson's contributions to analysis include Carlson's theorem, the Polyá–Carlson theorem on rational functions, and Carlson's inequality In number theory, his results include Carlson's theorem on Dirichlet series. Hans Rådström, Germund Dahlquist, and Tord Ganelius were among his students. Notes External links 1888 births 1952 deaths 20th-century Swedish mathematicians Academic staff of the KTH Royal Institute of Technology Mathematical analysts Directors of the Mittag-Leffler Institute