Erik Ivar Fredholm | |
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Erik Ivar Fredholm
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Born | April 7, 1866 Stockholm |
Died | August 17, 1927 Mörby (near Stockholm) |
Nationality | Swedish |
Fields | Mathematics |
Doctoral advisor | Gösta Mittag-Leffler |
Doctoral students | Nils Zeilon |
Known for | Analytic Fredholm theorem Fredholm alternative Fredholm determinant Fredholm equation Fredholm kernel Fredholm module Fredholm operator Fredholm theory |
Erik Ivar Fredholm (April 7, 1866 – August 17, 1927) was a Swedish mathematician whose work on integral equations and operator theory foreshadowed the theory of Hilbert spaces.
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Fredholm was born in Stockholm in 1866. He obtained his PhD at Uppsala University in 1898, under the supervision of Gösta Mittag-Leffler. He was docent at Stockholm University from 1898 to 1906 and professor from 1906 until his death.[1]
From 1911, he was married to Agnes Maria Liljeblad, the secretary of Mittag-Leffler.[2]
In ( 1900, 1903), Fredholm introduced and analysed a class of integral equations now called Fredholm equations. His analysis included the construction of Fredholm determinants, and the proof of the Fredholm theorems.
Fredholm was a member of the Finnish Society of Sciences and Letters and of the Accademia dei Lincei; he was awarded the Poncelet Prize.[3]
The lunar crater Fredholm is named after him.