Lipót Fejér
was born 137 years ago
9th February 1880

Lipót Fejér's main work was in harmonic analysis working on Fourier series and their singularities. Fejér collaborated to produce important papers with Carathéodory on entire functions and with Riesz on conformal mappings.

Find out more at:
http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Fejer.html