Niels Erik Nørlund

Niels Erik Nørlund

Niels Erik Nørlund ForMemRS^[1] (26 October 1885, in Slagelse – 4 July 1981, in Copenhagen) was a Danish mathematician.^[2][3][4]

His book Vorlesungen über Differenzenrechnung (1924, reprinted 1954) was the first book on complex function solutions of difference equations. His doctoral students include Georg Rasch.

Selected works

• Vorlesungen über Differenzenrechnung. Berlin: Springer-Verlag. 1924.^[5]
• with René Lagrange as editor: Leçons sur les équations linéaires aux différences finies. Paris: Gauthier-Villars. 1929.^[6]
• Vermessungsarbeiten in Grönland, Island und Dänemark. Darmstadt. 1939.
• "The logarithmic solutions of the hypergeometric equation". K. Dan. Vidensk. Selsk. Mat. Fys. Skr. 5: 1–58. 1963.

See also

• Nörlund–Rice integral
• Inge Lehmann

References

1. Bang, Thøger (1983). "Niels Erik Norlund. 26 October 1885-4 July 1981". Biographical Memoirs of Fellows of the Royal Society. 29: 481. doi:10.1098/rsbm.1983.0017. JSTOR 769810.
2. O'Connor, John J.; Robertson, Edmund F., "Niels Erik Nørlund", MacTutor History of Mathematics archive, University of St Andrews.
3. Niels Erik Nørlund at the Mathematics Genealogy Project
4. Bang, Thøger G. (1988). "Niels Erik Nørlund in memoriam". Acta Mathematica. 161: 11–22. doi:10.1007/BF02392293.
5. Carmichael, R. D. (1925). "Nörlund on Calculus of Differences". Bull. Amer. Math. Soc. 31 (8): 445–449. doi:10.1090/S0002-9904-1925-04088-4.
6. Carmichael, R. D. (1930). "Nörlund on Finite Differences". Bull. Amer. Math. Soc. 36 (1): 25–26. doi:10.1090/S0002-9904-1930-04861-2.

Further reading

• Mathematics and Mathematicians: Mathematics in Sweden Before 1950
• Nørlund on Calculus of Differences