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Mathematician

Niels Henrik Abel

Modern

Norwegian mathematician who, still in his early twenties and working largely in poverty, proved that the general quintic equation (and every higher degree) cannot be solved by a formula using only radicals, the Abel-Ruffini theorem, settling a question open since the sixteenth century solution of the cubic and quartic. He also did foundational work on elliptic and elliptic-related functions, including an 1827 result on dividing the lemniscate, the figure-eight curve, into equal arcs by straightedge and compass alone, a construction problem in the same family as Gauss's heptadecagon result three decades earlier. Recognition came only after his death from tuberculosis at twenty six; a professorship offer from Berlin arrived days too late.

Facts
Birth Date
1802-08-05 2
Birth Year
1802 2
Death Date
1829-04-06 2
Death Year
1829 2
Birthplace
Nedstrand, Norway (then in union with Denmark) 2
Death Place
Froland, Norway, of tuberculosis 2
Nationality / Culture
Norwegian 2
Defining Contribution
Proved the general quintic (and higher) equation cannot be solved by radicals (Abel-Ruffini theorem); the 1827 division of the lemniscate by straightedge and compass. 2
Notable Work
Memoire sur les equations algebriques (1824); Recherches sur les fonctions elliptiques (1827) 2
Biography
Gender
Male 1
Connections

Associated With

Symmetry, Concepts
Source MacTutor History of Mathematics Archive

In Branch

Source MacTutor History of Mathematics Archive
Source MacTutor History of Mathematics Archive

Namesake Of

Abel's Binomial Theorem, Theorems

Derived from the theorem's own name (unambiguous possessive-token match to exactly one live mathematician entity, w-bfill-g5-0924 browse backfill)

Abel's Identity, Theorems

Derived from the theorem's own name (unambiguous possessive-token match to exactly one live mathematician entity, w-bfill-g5-0924 browse backfill)

Derived from the theorem's own name (unambiguous possessive-token match to exactly one live mathematician entity, w-bfill-g5-0924 browse backfill)

Derived from the object's own name (unambiguous possessive-token match to exactly one live mathematician entity, w-bfill-g5-0924 browse backfill)

Abel's Test, Theorems

Derived from the theorem's own name (unambiguous possessive-token match to exactly one live mathematician entity, w-bfill-g5-0924 browse backfill)

Derived from the theorem's own name (unambiguous possessive-token match to exactly one live mathematician entity, w-bfill-g5-0924 browse backfill)

Proofs Credited

Source MacTutor History of Mathematics Archive
In the Other Atlases
Sources
1. Wikipedia: Niels Henrik Abel
WikipediaLead section, gender reference
Quote, Lead section, gender reference
His most famous single result is the first complete proof demonstrating the impossibility of solving the general quintic equation in radicals.
View the Source
2. MacTutor History of Mathematics Archive
University of St Andrews, School of Mathematics and StatisticsAssociated With: Symmetry, https://mathshistory.st-andrews.ac.uk/Biographies/Abel/
Quote, Associated With: Symmetry, https://mathshistory.st-andrews.ac.uk/Biographies/Abel/
Abel began working again on quintic equations and, in 1824, he proved the impossibility of solving the general equation of the fifth degree in radicals.
View the Source

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