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...

In matrix theory, the Perron–Frobenius theorem, proved by Oskar Perron (1907) and Georg Frobenius (1912), asserts that a real square matrix with positive...

and more particularly in analytic number theory, Perron's formula is a formula due to Oskar Perron to calculate the sum of an arithmetic function, by...

in India Fleuri Perron (1866–1931), an Alberta politician and businessman Oskar Perron (1880–1975), a German mathematician Jean Perron (born 1946), a head...

continuity), and by Oskar Perron, who was interested in continuous major and minor functions. It took a while to understand that the Perron and Denjoy integrals...

3 x + 1 {\displaystyle x^{2}-3x+1} is a Perron number. Perron numbers are named after Oskar Perron; the Perron–Frobenius theorem asserts that, for a real...

harmonic functions, the Perron method, also known as the method of subharmonic functions, is a technique introduced by Oskar Perron for the solution of the...

also over the rational numbers). The criterion was first published by Oskar Perron in 1907 in Journal für die reine und angewandte Mathematik. A short proof...

Volker Oppitz Felix Otto Moritz Pasch Heinz-Otto Peitgen Rose Peltesohn Oskar Perron Fritz Peter Stefanie Petermichl Hans Petersson Carl Adam Petri Johann...

(see figure for corresponding illustrations) is known as a "Perron tree" after Oskar Perron who was able to simplify Besicovitch's original construction...