Grothendieck's Tôhoku paper
On the foundations of homological algebra / From Wikipedia, the free encyclopedia
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The article "Sur quelques points d'algèbre homologique" by Alexander Grothendieck,[1] now often referred to as the Tôhoku paper,[2] was published in 1957 in the Tôhoku Mathematical Journal. It revolutionized the subject of homological algebra, a purely algebraic aspect of algebraic topology.[3] It removed the need to distinguish the cases of modules over a ring and sheaves of abelian groups over a topological space.[4]