Axel Thue

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Axel Thue
Axel Thue (1863-1922)
Born(1863-02-19)19 February 1863
Died7 March 1922(1922-03-07) (aged 59)
Alma materUniversity of Kristiania
Known forThue's theorem, Thue systems
Scientific career
InstitutionsUniversity of Kristiania
Trondheim Technical College
Thesis (1889)
Doctoral advisorElling Holst
Doctoral studentsThoralf Skolem

Axel Thue (Norwegian: [tʉː]; 19 February 1863 – 7 March 1922) was a Norwegian mathematician, known for his original work in diophantine approximation and combinatorics.


Thue published his first important paper in 1909.[1]

He stated in 1914 the so-called word problem for semigroups or Thue problem, closely related to the halting problem.[2]

His only known PhD student was Thoralf Skolem.

The esoteric programming language Thue is named after him.


  • Thue, A. (1909), "Über Annäherungswerte algebraischer Zahlen", Journal für die reine und angewandte Mathematik, 1909 (135): 284–305, doi:10.1515/crll.1909.135.284, ISSN 0075-4102, S2CID 125903243
  • Thue, A. (1977) [1912], "Über die gegenseitige Lage gleicher Teile gewisser Zeichenreihen", Selected Math. Papers of Axel Thue, Universiteitsforlaget: 67

See also[edit]


  1. ^ O'Connor, John J.; Robertson, Edmund F., "Axel Thue", MacTutor History of Mathematics Archive, University of St Andrews
  2. ^ Ronald V. Book and Friedrich Otto, String-rewriting Systems, Springer, 1993, ISBN 0-387-97965-4, p. 36.

External links[edit]