Ext functor
derived functors of the Hom functor
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Ext functor
Summary
Ext functor ranks in the top 2% of general entities by monthly Wikipedia readership (131 views/month).[1]
Key Facts
- Ext functor's subclass of is recorded as derived functor[2].
- Ext functor's Freebase ID is recorded as /m/03g11h[3].
- Ext functor's defining formula is recorded as \operatorname{Ext}_R^i(A,B)=\mathrm R^i(\hom_R(A,-))(B)[4].
- Ext functor's studied by is recorded as homological algebra[5].
- Ext functor's nLab ID is recorded as Ext[6].
- Ext functor's Microsoft Academic ID is recorded as 33464968[7].
- Ext functor's in defining formula is recorded as \operatorname{Ext}[8].
- Ext functor's in defining formula is recorded as R[9].
- Ext functor's in defining formula is recorded as A[10].
- Ext functor's in defining formula is recorded as B[11].
- Ext functor's in defining formula is recorded as \mathrm R[12].
- Ext functor's in defining formula is recorded as \hom[13].
- Ext functor's in defining formula is recorded as i[14].
- Ext functor's OpenAlex ID is recorded as C33464968[15].
Why It Matters
Ext functor ranks in the top 2% of general entities by monthly Wikipedia readership (131 views/month).[1] It has Wikipedia articles in 9 language editions, a strong signal of global cultural recognition.[16]