Cote n° 94 · pages 2–23
· 43 displayed formulas · Dualité des modules / Construction de faisceaux de modules : notes manuscrites (s.d.).
Inventory dating : [à partir de 1965]
Édition de démonstration
\[F_B \colon \mathrm{Mod}(B) \to (\mathrm{Ens})\]
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\[
F_B \colon \mathrm{Mod}(B) \to (\mathrm{Ens})
\]\[F \text{ représentable (resp.\ par un $A$-module de type fini, de prés.\ finie)}\]
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\[
F \text{ représentable (resp.\ par un $A$-module de type fini, de prés.\ finie)}
\]\[\Updownarrow\]
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\[ \Updownarrow \]
\[F \text{ exact à gauche, et } F_B \text{ représentable (resp.\ par un $B$-module de type fini, de prés.\ finie).}\]
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\[
F \text{ exact à gauche, et } F_B \text{ représentable (resp.\ par un $B$-module de type fini, de prés.\ finie).}
\]\[F(M) \xrightarrow{\ \sim\ } \varprojlim F(M/f^{n+1}M)\]
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\[
F(M) \xrightarrow{\ \sim\ } \varprojlim F(M/f^{n+1}M)
\]\[F(\widehat{M}) \xrightarrow{\ \sim\ } \varprojlim F(M/\mathfrak{m}^{n+1}M),\]
LaTeX source
\[
F(\widehat{M}) \xrightarrow{\ \sim\ } \varprojlim F(M/\mathfrak{m}^{n+1}M),
\]\[F(M) \xrightarrow{\ \sim\ } \varprojlim F(M/\mathfrak{m}_{\mathfrak{p}}^{n+1}M) ;\]
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\[
F(M) \xrightarrow{\ \sim\ } \varprojlim F(M/\mathfrak{m}_{\mathfrak{p}}^{n+1}M) ;
\]\[\begin{cases}
\underline{N}'_x = N_x \subset M_x \\
\underline{N}'_s = N_s \subset M_s & \text{si } s \in U \cap V.
\end{cases}\]
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\[
\begin{cases}
\underline{N}'_x = N_x \subset M_x \\
\underline{N}'_s = N_s \subset M_s & \text{si } s \in U \cap V.
\end{cases}
\]\[\mathrm{Tor}_i^{\mathcal{O}_{S,s}}\bigl(F_s,\ \mathcal{O}_{S,s}/(f_1, \ldots, f_n)\bigr) = 0
\quad \text{pour } i > 0 .\]
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\[
\mathrm{Tor}_i^{\mathcal{O}_{S,s}}\bigl(F_s,\ \mathcal{O}_{S,s}/(f_1, \ldots, f_n)\bigr) = 0
\quad \text{pour } i > 0 .
\]\[\underline{\mathrm{Hom}}(P, \Omega)_s \otimes \mathcal{O}_{S,s}/(f_1, \ldots, f_n)
\longrightarrow
\underline{\mathrm{Hom}}_{\mathcal{O}_{S,s}}\bigl(P_s,\ \Omega_s/(f_1, \ldots, f_n)\Omega_s\bigr)\]
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\[
\underline{\mathrm{Hom}}(P, \Omega)_s \otimes \mathcal{O}_{S,s}/(f_1, \ldots, f_n)
\longrightarrow
\underline{\mathrm{Hom}}_{\mathcal{O}_{S,s}}\bigl(P_s,\ \Omega_s/(f_1, \ldots, f_n)\Omega_s\bigr)
\]\[L_1 \to L_0 \to P\]
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\[ L_1 \to L_0 \to P \]
\[K^{\cdot} \colon\quad 0 \to \check{L}_0 \otimes Q \to \check{L}_1 \otimes Q \to 0\]
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\[
K^{\cdot} \colon\quad 0 \to \check{L}_0 \otimes Q \to \check{L}_1 \otimes Q \to 0
\]\[H^0(K^{\cdot}) \otimes M \to H^0(K^{\cdot} \otimes M)\]
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\[
H^0(K^{\cdot}) \otimes M \to H^0(K^{\cdot} \otimes M)
\]\[\mathrm{Tor}_1(M, H^1(K^{\cdot})) = \mathrm{Tor}_1(M, Z^1(K^{\cdot})) = 0 .\]
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\[
\mathrm{Tor}_1(M, H^1(K^{\cdot})) = \mathrm{Tor}_1(M, Z^1(K^{\cdot})) = 0 .
\]\[\mathrm{Hom}\bigl(R',\ \Omega_x/(f_1, \ldots, f_n)\Omega_x\bigr) \to
\mathrm{Hom}\bigl(R,\ \Omega_x/(f_1, \ldots, f_n)\Omega_x\bigr)\]
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\[
\mathrm{Hom}\bigl(R',\ \Omega_x/(f_1, \ldots, f_n)\Omega_x\bigr) \to
\mathrm{Hom}\bigl(R,\ \Omega_x/(f_1, \ldots, f_n)\Omega_x\bigr)
\]\[F(\Omega) \otimes A_{\mathfrak{p}}/(f_1, \ldots, f_n) \to
F\bigl(\Omega \otimes A_{\mathfrak{p}}/(f_1, \ldots, f_n)\bigr)\]
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\[
F(\Omega) \otimes A_{\mathfrak{p}}/(f_1, \ldots, f_n) \to
F\bigl(\Omega \otimes A_{\mathfrak{p}}/(f_1, \ldots, f_n)\bigr)
\]\[\mathrm{Hom}(P_{i_0}, \Omega/\underline{f}\Omega) \to
\mathrm{Hom}(P_i, \Omega_{\mathfrak{p}}/\underline{f}\Omega_{\mathfrak{p}})\]
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\[
\mathrm{Hom}(P_{i_0}, \Omega/\underline{f}\Omega) \to
\mathrm{Hom}(P_i, \Omega_{\mathfrak{p}}/\underline{f}\Omega_{\mathfrak{p}})
\]\[F(M) \xrightarrow{\ \sim\ } \varprojlim F(M/\mathfrak{m}_{\mathfrak{p}}^{n+1}M) ;\]
LaTeX source
\[
F(M) \xrightarrow{\ \sim\ } \varprojlim F(M/\mathfrak{m}_{\mathfrak{p}}^{n+1}M) ;
\]\[F(M) \xrightarrow{\ \sim\ } \varprojlim F(M/f^{n+1}M) ;\]
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\[
F(M) \xrightarrow{\ \sim\ } \varprojlim F(M/f^{n+1}M) ;
\]\[F(\Omega) \otimes B_{\mathfrak{p}}/\underline{f} B_{\mathfrak{p}}
\longrightarrow
F(\Omega \otimes B_{\mathfrak{p}}/\underline{f} B_{\mathfrak{p}})\]
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\[
F(\Omega) \otimes B_{\mathfrak{p}}/\underline{f} B_{\mathfrak{p}}
\longrightarrow
F(\Omega \otimes B_{\mathfrak{p}}/\underline{f} B_{\mathfrak{p}})
\]\[\underline{\mathrm{Hom}}(P, M) \simeq
f_{*}\,\underline{\mathrm{Hom}}(F,\ G \otimes_{\mathcal{O}_S} M)\]
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\[
\underline{\mathrm{Hom}}(P, M) \simeq
f_{*}\,\underline{\mathrm{Hom}}(F,\ G \otimes_{\mathcal{O}_S} M)
\]\[\mathrm{Hom}(P, M) \simeq \mathrm{Hom}(F,\ G \otimes_{\mathcal{O}_S} M),\]
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\[
\mathrm{Hom}(P, M) \simeq \mathrm{Hom}(F,\ G \otimes_{\mathcal{O}_S} M),
\]\[M \longmapsto R^{q} f_{*}\bigl(\underline{\mathrm{Ext}}^{i}(F,\ G \otimes_{\mathcal{O}_S} M)\bigr)\]
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\[
M \longmapsto R^{q} f_{*}\bigl(\underline{\mathrm{Ext}}^{i}(F,\ G \otimes_{\mathcal{O}_S} M)\bigr)
\]\[M \longmapsto H^{q}\bigl(X,\ \underline{\mathrm{Ext}}^{i}(F,\ G \otimes_{\mathcal{O}_S} M)\bigr)\]
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\[
M \longmapsto H^{q}\bigl(X,\ \underline{\mathrm{Ext}}^{i}(F,\ G \otimes_{\mathcal{O}_S} M)\bigr)
\]\[\underline{\mathrm{Ext}}^{i}(F,\ G \otimes_{\mathcal{O}_S} \Omega) \otimes A_{\mathfrak{p}}/\underline{f} A_{\mathfrak{p}}
\xrightarrow{\ \sim\ }
\underline{\mathrm{Ext}}^{i}(F,\ G \otimes_{\mathcal{O}_S} \Omega \otimes A_{\mathfrak{p}}/\underline{f} A_{\mathfrak{p}})\]
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\[
\underline{\mathrm{Ext}}^{i}(F,\ G \otimes_{\mathcal{O}_S} \Omega) \otimes A_{\mathfrak{p}}/\underline{f} A_{\mathfrak{p}}
\xrightarrow{\ \sim\ }
\underline{\mathrm{Ext}}^{i}(F,\ G \otimes_{\mathcal{O}_S} \Omega \otimes A_{\mathfrak{p}}/\underline{f} A_{\mathfrak{p}})
\]\[\underline{\mathrm{Ext}}^{i}(F,\ \underbrace{G \otimes_A \Omega}_{G'})
= H^{i}\bigl(\underline{\mathrm{Hom}}^{\cdot}(L_{\cdot},\ G \otimes_{\mathcal{O}_S} \Omega)\bigr)
= H^{i}\bigl(\underbrace{(\check{L}_{\cdot} \otimes_B G) \otimes_{\mathcal{O}_S} \Omega}_{K^{\cdot}}\bigr)\]
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\[
\underline{\mathrm{Ext}}^{i}(F,\ \underbrace{G \otimes_A \Omega}_{G'})
= H^{i}\bigl(\underline{\mathrm{Hom}}^{\cdot}(L_{\cdot},\ G \otimes_{\mathcal{O}_S} \Omega)\bigr)
= H^{i}\bigl(\underbrace{(\check{L}_{\cdot} \otimes_B G) \otimes_{\mathcal{O}_S} \Omega}_{K^{\cdot}}\bigr)
\]\[\underline{\mathrm{Ext}}^{i}(F,\ (G \otimes_{\mathcal{O}_S} \Omega) \otimes_A M) = H^{i}(K^{\cdot} \otimes M),\]
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\[
\underline{\mathrm{Ext}}^{i}(F,\ (G \otimes_{\mathcal{O}_S} \Omega) \otimes_A M) = H^{i}(K^{\cdot} \otimes M),
\]\[\underline{\mathrm{Ext}}^{i}_{\mathcal{O}_X}(F, G') \otimes_{\mathcal{O}_S} M
\xrightarrow{\ \sim\ }
\underline{\mathrm{Ext}}^{i}_{\mathcal{O}_X}(F,\ G' \otimes_A M)\]
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\[
\underline{\mathrm{Ext}}^{i}_{\mathcal{O}_X}(F, G') \otimes_{\mathcal{O}_S} M
\xrightarrow{\ \sim\ }
\underline{\mathrm{Ext}}^{i}_{\mathcal{O}_X}(F,\ G' \otimes_A M)
\]\[H^{i}(K^{\cdot}) \otimes_A M \xrightarrow{\ \sim\ } H^{i}(K \otimes_A M)
\quad \text{si } i \leq N .\]
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\[
H^{i}(K^{\cdot}) \otimes_A M \xrightarrow{\ \sim\ } H^{i}(K \otimes_A M)
\quad \text{si } i \leq N .
\]\[\begin{cases}
\mathrm{Tor}_i^{A}(K^{j}, M) = 0 & \text{pour } i > 0, \text{ tout } j \\
\mathrm{Tor}_i^{A}(H^{j}(K^{\cdot}), M) = 0 & \text{pour } i > 0, \text{ tout } j.
\end{cases}\]
LaTeX source
\[
\begin{cases}
\mathrm{Tor}_i^{A}(K^{j}, M) = 0 & \text{pour } i > 0, \text{ tout } j \\
\mathrm{Tor}_i^{A}(H^{j}(K^{\cdot}), M) = 0 & \text{pour } i > 0, \text{ tout } j.
\end{cases}
\]\[\mathrm{Tor}_i^{A}(F,\ A_{\mathfrak{p}}/\underline{f} A_{\mathfrak{p}}) = 0
\quad \text{pour } i > 0 .\]
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\[
\mathrm{Tor}_i^{A}(F,\ A_{\mathfrak{p}}/\underline{f} A_{\mathfrak{p}}) = 0
\quad \text{pour } i > 0 .
\]\[R^{j} f_{*}(E)_s \otimes \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s}
\longrightarrow
R^{j} f^{(s)}_{*}\bigl(E^{(s)} \otimes \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s}\bigr)\]
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\[
R^{j} f_{*}(E)_s \otimes \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s}
\longrightarrow
R^{j} f^{(s)}_{*}\bigl(E^{(s)} \otimes \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s}\bigr)
\]\[E^{(s)} \otimes \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s}
\simeq
E^{(s)} \overset{\mathbb{L}}{\otimes} \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s} .\]
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\[
E^{(s)} \otimes \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s}
\simeq
E^{(s)} \overset{\mathbb{L}}{\otimes} \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s} .
\]\[K^{\cdot} \otimes \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s}
= K^{\cdot} \overset{\mathbb{L}}{\otimes} \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s} .\]
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\[
K^{\cdot} \otimes \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s}
= K^{\cdot} \overset{\mathbb{L}}{\otimes} \mathcal{O}_{S,s}/\underline{f}\,\mathcal{O}_{S,s} .
\]\[Rf_{*}\bigl(\underbrace{E \overset{\mathbb{L}}{\otimes}_{\mathcal{O}_S} M}_{E \otimes_{\mathcal{O}_S} M}\bigr)
\longrightarrow
\underbrace{Rf_{*}(E) \overset{\mathbb{L}}{\otimes}_{\mathcal{O}_S} M}_{K^{\cdot} \overset{\mathbb{L}}{\otimes} M \,=\, K^{\cdot} \otimes M},\]
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\[
Rf_{*}\bigl(\underbrace{E \overset{\mathbb{L}}{\otimes}_{\mathcal{O}_S} M}_{E \otimes_{\mathcal{O}_S} M}\bigr)
\longrightarrow
\underbrace{Rf_{*}(E) \overset{\mathbb{L}}{\otimes}_{\mathcal{O}_S} M}_{K^{\cdot} \overset{\mathbb{L}}{\otimes} M \,=\, K^{\cdot} \otimes M},
\]\[H^{j}(K^{\cdot}) \otimes M \to H^{j}(K^{\cdot} \otimes M) .\]
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\[
H^{j}(K^{\cdot}) \otimes M \to H^{j}(K^{\cdot} \otimes M) .
\]\[\mathrm{Tor}_i^{\mathcal{O}_S}(H^{j}(K^{\cdot}), M) = 0 \quad \text{pour } i > 0,\ \text{tout } j,\]
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\[
\mathrm{Tor}_i^{\mathcal{O}_S}(H^{j}(K^{\cdot}), M) = 0 \quad \text{pour } i > 0,\ \text{tout } j,
\]\[f_{*}(Z) = \prod_{X/S} Z/X\]
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\[
f_{*}(Z) = \prod_{X/S} Z/X
\]\[\underline{\mathrm{Hom}}(F, f^{*}(M)) \simeq \underline{\mathrm{Hom}}(P, M),\]
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\[
\underline{\mathrm{Hom}}(F, f^{*}(M)) \simeq \underline{\mathrm{Hom}}(P, M),
\]\[Z \hookrightarrow Z' = V(\underline{F}),\]
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\[
Z \hookrightarrow Z' = V(\underline{F}),
\]\[f_{*}(Z) \to f_{*}(Z')\]
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\[
f_{*}(Z) \to f_{*}(Z')
\]\[f_{*}(Y) = \prod_{X/S} Y/X .\]
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\[
f_{*}(Y) = \prod_{X/S} Y/X .
\]\[f_{*}(V(F)) \simeq V(P) :\]
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\[
f_{*}(V(F)) \simeq V(P) :
\]