Oskar Perron

Oskar Perron

Perron in 1948
Photo courtesy MFO
Born (1880-05-07)May 7, 1880
Frankenthal
Died February 22, 1975(1975-02-22) (aged 94)
Munich
Nationality German
Fields Mathematics
Institutions University of Heidelberg
University of Munich
Alma mater University of Munich
Doctoral advisor Ferdinand von Lindemann
Doctoral students Josef Heinhold
Helmut Röhrl
Hermann Schmidt
Georgi Bradistilov

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:

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

to illustrate the danger of assuming that the solution of an optimization problem exists.

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