Oskar Perron Explained

Oskar Perron
Birth Date:7 May 1880
Birth Place:Frankenthal
Death Place:Munich
Nationality:German
Fields:Mathematics
Workplaces:University of Heidelberg
University of Munich
Alma Mater:University of Munich
Doctoral Advisor:Ferdinand von Lindemann
Doctoral Students:Helmut Röhrl
Georgi Bradistilov
Known For:Perron's paradox
Perron effect
Perron's formula
Perron integral
Perron method
Perron number
Perron tree
Perron's irreducibility criterion
Perron–Frobenius theorem
Moessner's theorem

Oskar Perron (7 May 1880  - 22 February 1975) was a German mathematician.

He was a professor at the University of Heidelberg from 1914 to 1922 and at the University of Munich from 1922 to 1951. He made numerous contributions to differential equations and partial differential equations, including the Perron method to solve the Dirichlet problem for elliptic partial differential equations. He wrote an encyclopedic book on continued fractions Die Lehre von den Kettenbrüchen. He introduced Perron's paradox to illustrate the danger of assuming that the solution of an optimization problem exists:

Let N be the largest positive integer. If N > 1, then N2 > N, contradicting the definition of N. Hence N = 1.

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Notes and References

  1. Scott, W. T.. Review: Oskar Perron, Die Lehre von den Kettenbrüchen. Vol. I. Elementare Kettenbruche. 3rd ed.. Bull. Amer. Math. Soc.. 1955. 61. 6. 594–595. 10.1090/S0002-9904-1955-10003-1. free.
  2. Scott, W. T.. Review: Oskar Perron, Die Lehre von den Kettenbruchen. Vol. II. Analytische-funktionen-theoretische Kettenbruche. 3rd ed.. Bull. Amer. Math. Soc.. 1958. 64. 5. 299–300. 10.1090/s0002-9904-1958-10240-2. free.
  3. Kempner, A. J.. Aubrey J. Kempner. Review: Oskar Perron, Irrationalzahlen. Bull. Amer. Math. Soc.. 1923. 29. 1. 34–36. 10.1090/s0002-9904-1923-03650-1. free.
  4. Hazlett, Olive C.. Olive Hazlett. Review: Oskar Perron, Irrationalzahlen, 2d revised edition. Bull. Amer. Math. Soc.. 1940. 46. 1. 15–16. 10.1090/s0002-9904-1940-07136-8. free.
  5. Hazlett, O. C.. Review: Oskar Perron, Algebra. Bull. Amer. Math. Soc.. 1928. 34. 1. 115–116. 10.1090/s0002-9904-1928-04528-7. free.