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bn:01406295n
Noun Concept
EL
πρόβλημα whitehead
EN
In group theory, a branch of abstract algebra, the Whitehead problem is the following question: Is every abelian group A with Ext1 = 0 a free abelian group? Wikipedia
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μαθηματικό πρόβλημα
NAMED AFTER
EN
J. H. C. Whitehead
Wikipedia Translations
EL
πρόβλημα whitehead

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