Thomas Hakon Grönwall

Thomas Hakon Grönwall, also Gronwall ( in the U.S.), Grönvall, (born 16 January 1877 in Dylta Bruk at Axberg; † May 9, 1932 in New York, NY) was a Swedish mathematician. The grönwallsche inequality is named after him. He was mainly active in the field of physics and physical chemistry and dealt with classical analysis.

Grönwalls parents were Carl Theodor Grönwall and Laura Elizabeth Billqvist. He studied from 1893 in Uppsala and then went after one year to Stockholm. In 1898 he received his doctorate at the age of only 21 years in Uppsala. The topic of his dissertation was on systems of linear total differential equations particularly with- periodic coefficients. Later, he was briefly in Germany, where in 1902 at the University of Berlin -Charlottenburg his degree as Diplom-Ingenieur made ​​, a civil engineer and emigrated in 1904 to the United States, where until 1912 he also worked as an engineer. From 1912 he worked again in mathematics and taught, among other things at Princeton and at Columbia University in New York, where he worked as a consulting mathematician.