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'''Atle Selberg''' was born in Langesund, Norway, on 14th June, 1917. He studied mathematics at the University of Oslo and obtained his Ph.D in 1943. <ref>[http://www.spartacus.schoolnet.co.uk/USAselberg.htm Atle Selberg]</ref>

'''Atle Selberg''' is a Norwegian mathematician.  He was born in Langesund, Norway, on 14th June, 1917. He studied mathematics at the University of Oslo and obtained his Ph.D in 1943. <ref>[http://www.spartacus.schoolnet.co.uk/USAselberg.htm Atle Selberg]</ref>

He is a Norwegian [[mathematician]] who, in 1948, provided a long-awaited elementary proof of the prime number theorem, around the same time that [[Paul Erdős]] provided an independent proof.  He immigrated to the United States and works at the Institute for Advanced Study in [[Princeton University|Princeton]].

In 1948 he provided a long-awaited elementary proof of the prime number theorem, around the same time that [[Paul Erdős]] provided an independent proof.  He immigrated to the United States and works at the Institute for Advanced Study in [[Princeton University|Princeton]].

He introduced [[Spectral theory (mathematics)|spectral theory]] into number theory and developed the Selberg trace formula.

He introduced [[Spectral theory (mathematics)|spectral theory]] into number theory and developed the Selberg trace formula.