Wilhelm Grunwald (15 July 1909 – 7 June 1989) was a German mathematician who introduced the

Grunwald–Wang theorem In algebraic number theory, the Grunwald–Wang theorem is a local-global principle stating that—except in some precisely defined cases—an element ''x'' in a number field ''K'' is an ''n''th power in ''K'' if it is an ''n''th power in the comp ...

, though his original statement and proof of this contained a small error that was corrected by

Shianghao Wang Wang Xianghao, Shianghao Wang, or Shianghaw Wang (; 5 May 1915 – 4 May 1993) was a Chinese mathematician who introduced the Grunwald–Wang theorem in , correcting an error in Wilhelm Grunwald's original statement and proof of this. He later c ...

. He later left mathematics to become a science librarian, and was director of the

Göttingen Göttingen (, , ; nds, Chöttingen) is a college town, university city in Lower Saxony, central Germany, the Capital (political), capital of Göttingen (district), the eponymous district. The River Leine runs through it. At the end of 2019, t ...

university library .

References

* * * {{DEFAULTSORT:Grunwald, Wilhelm 1909 births 1989 deaths 20th-century German mathematicians