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・ Grothendieck category
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Grothendieck local duality
・ Grothendieck space
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・ Grothendieck topology
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・ Grothendieck universe
・ Grothendieck's connectedness theorem
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・ Grothendieck's Tôhoku paper
・ Grothendieck–Katz p-curvature conjecture
・ Grothendieck–Ogg–Shafarevich formula
・ Grothendieck–Riemann–Roch theorem
・ Grothendieck–Teichmüller group
・ Grothusenkoog


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Grothendieck local duality : ウィキペディア英語版
Grothendieck local duality
In commutative algebra, Grothendieck local duality is a duality theorem for cohomology of modules over local rings, analogous to Serre duality of coherent sheaves.
==Statement==

Suppose that ''R'' is a Cohen–Macaulay local ring of dimension ''d'' with maximal ideal ''m'' and residue field ''k'' = ''R''/''m''. Let ''E''(''k'') be a Matlis module, an injective hull of ''k'', and let be the completion of its dualizing module. Then for any ''R''-module ''M'' there is an isomorphism of modules over the completion of ''R'':
: \operatorname_R^i(M,\overline\Omega) \cong \operatorname_R(H_m^(M),E(k))
where ''H''''m'' is a local cohomology group.
There is a generalization to Noetherian local rings that are not Cohen–Macaulay, that replaces the dualizing module with a dualizing complex.

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