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  <fr:frontmatter>
    <fr:anchor>3634</fr:anchor>
    <fr:addr type="user">index</fr:addr>
    <fr:route>index.xml</fr:route>
    <fr:title text="Deligne's &quot;Hodge Theory I, II, and III&quot;">Deligne's "Hodge Theory I, II, and III"</fr:title>
    <fr:authors />
  </fr:frontmatter>
  <fr:mainmatter>
    <fr:p>
      <fr:ul><fr:li><fr:strong><fr:em>TO-DO: search for all <fr:code>todo</fr:code></fr:em></fr:strong></fr:li>
    <fr:li><fr:strong><fr:em>TO-DO: make subsections appear in PDF (use <fr:code>chunk</fr:code> environment)</fr:em></fr:strong></fr:li>
    <fr:li><fr:strong><fr:em>TO-DO: check PDF output</fr:em></fr:strong></fr:li>
    <fr:li><fr:strong><fr:em>TO-DO: name all <fr:code>proof</fr:code> trees something like <fr:code>proof-of-hodge-theory-iii-X.Y.Z</fr:code>?</fr:em></fr:strong></fr:li></fr:ul>
    </fr:p>
    <fr:p>This is an English translation of <fr:strong>P. Deligne</fr:strong>'s three papers on Hodge theory:
  <fr:ul><fr:li>"Théorie de Hodge I", <fr:em>Actes du Congrès intern. math.</fr:em> <fr:strong>1</fr:strong> (1970) pp. 425–430.
      <fr:link type="external" href="https://publications.ias.edu/node/359">[PDF]</fr:link></fr:li>
    <fr:li>"Théorie de Hodge II", <fr:em>Pub. Math. de l'IHÉS</fr:em> <fr:strong>40</fr:strong> (1971) pp. 5–58.
      <fr:link type="external" href="https://publications.ias.edu/node/361">[PDF]</fr:link></fr:li>
    <fr:li>"Théorie de Hodge III", <fr:em>Pub. Math. de l'IHÉS</fr:em> <fr:strong>44</fr:strong> (1974) pp. 5–77.
      <fr:link type="external" href="https://publications.ias.edu/node/373">[PDF]</fr:link></fr:li></fr:ul></fr:p>
    <fr:p>The translator (<fr:link type="external" href="https://thosgood.com">Tim Hosgood</fr:link>) takes full responsibility for any errors introduced, and claims no rights to any of the mathematical content herein.
  Any notes by the translator are in italics and prefixed with "[Trans.]".</fr:p>
    <fr:p>You can view the entire source code of this translation (and contribute or submit corrections) in the <fr:link type="external" href="https://github.com/thosgood/hodge-theory">GitHub repository</fr:link>.
  Corrections and comments welcome.</fr:p>
    <fr:ul><fr:li><fr:link type="local" href="hodge-theory-i.xml" addr="hodge-theory-i" title="Hodge Theory I"><fr:strong>Hodge Theory I</fr:strong></fr:link></fr:li>

  <fr:li><fr:link type="local" href="hodge-theory-ii.xml" addr="hodge-theory-ii" title="Hodge Theory II"><fr:strong>Hodge Theory II</fr:strong></fr:link>
    
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        <fr:link type="local" href="hodge-theory-ii-introduction.xml" addr="hodge-theory-ii-introduction" title="Hodge Theory II › Introduction">Introduction</fr:link>
      </html:li>


      
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        <fr:link type="local" href="hodge-theory-ii-1.xml" addr="hodge-theory-ii-1" title="Hodge Theory II › Filtrations">Filtrations</fr:link>
        
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            <fr:link type="local" href="hodge-theory-ii-1.1.xml" addr="hodge-theory-ii-1.1" title="Hodge Theory II › Filtrations › Filtered objects">Filtered objects</fr:link>
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 <html:li style="list-style-type: &quot;1.2. &quot;">
            <fr:link type="local" href="hodge-theory-ii-1.2.xml" addr="hodge-theory-ii-1.2" title="Hodge Theory II › Filtrations › Opposite filtrations">Opposite filtrations</fr:link>
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 <html:li style="list-style-type: &quot;1.3. &quot;">
            <fr:link type="local" href="hodge-theory-ii-1.3.xml" addr="hodge-theory-ii-1.3" title="Hodge Theory II › Filtrations › The two filtrations lemma">The two filtrations lemma</fr:link>
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 <html:li style="list-style-type: &quot;1.4. &quot;">
            <fr:link type="local" href="hodge-theory-ii-1.4.xml" addr="hodge-theory-ii-1.4" title="Hodge Theory II › Filtrations › Hypercohomology of filtered complexes">Hypercohomology of filtered complexes</fr:link>
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        <fr:link type="local" href="hodge-theory-ii-2.xml" addr="hodge-theory-ii-2" title="Hodge Theory II › Hodge structures">Hodge structures</fr:link>
        
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            <fr:link type="local" href="hodge-theory-ii-2.1.xml" addr="hodge-theory-ii-2.1" title="Hodge Theory II › Hodge structures › Pure structures">Pure structures</fr:link>
          </html:li>

          
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            <fr:link type="local" href="hodge-theory-ii-2.2.xml" addr="hodge-theory-ii-2.2" title="Hodge Theory II › Hodge structures › Hodge theory">Hodge theory</fr:link>
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            <fr:link type="local" href="hodge-theory-ii-2.3.xml" addr="hodge-theory-ii-2.3" title="Hodge Theory II › Hodge structures › Mixed structures">Mixed structures</fr:link>
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        <fr:link type="local" href="hodge-theory-ii-3.xml" addr="hodge-theory-ii-3" title="Hodge Theory II › Hodge theory of non-singular algebraic varieties">Hodge theory of non-singular algebraic varieties</fr:link>
        
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            <fr:link type="local" href="hodge-theory-ii-3.1.xml" addr="hodge-theory-ii-3.1" title="Hodge Theory II › Hodge theory of non-singular algebraic varieties › Logarithmic poles and residues">Logarithmic poles and residues</fr:link>
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 <html:li style="list-style-type: &quot;3.2. &quot;">
            <fr:link type="local" href="hodge-theory-ii-3.2.xml" addr="hodge-theory-ii-3.2" title="Hodge Theory II › Hodge theory of non-singular algebraic varieties › Mixed Hodge theory">Mixed Hodge theory</fr:link>
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        <fr:link type="local" href="hodge-theory-ii-4.xml" addr="hodge-theory-ii-4" title="Hodge Theory II › Applications and supplements">Applications and supplements</fr:link>
        
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            <fr:link type="local" href="hodge-theory-ii-4.1.xml" addr="hodge-theory-ii-4.1" title="Hodge Theory II › Applications and supplements › The fixed set theorem">The fixed set theorem</fr:link>
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 <html:li style="list-style-type: &quot;4.2 &quot;">
            <fr:link type="local" href="hodge-theory-ii-4.2.xml" addr="hodge-theory-ii-4.2" title="Hodge Theory II › Applications and supplements › The semi-simplicity theorem">The semi-simplicity theorem</fr:link>
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 <html:li style="list-style-type: &quot;4.3 &quot;">
            <fr:link type="local" href="hodge-theory-ii-4.3.xml" addr="hodge-theory-ii-4.3" title="Hodge Theory II › Applications and supplements › Supplement to [D1968]">Supplement to [D1968]</fr:link>
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 <html:li style="list-style-type: &quot;4.4 &quot;">
            <fr:link type="local" href="hodge-theory-ii-4.4.xml" addr="hodge-theory-ii-4.4" title="Hodge Theory II › Applications and supplements › Homomorphisms of abelian schemes">Homomorphisms of abelian schemes</fr:link>
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    </html:ol></fr:li>

  <fr:li><fr:link type="local" href="hodge-theory-iii.xml" addr="hodge-theory-iii" title="Hodge Theory III"><fr:strong>Hodge Theory III</fr:strong></fr:link>
    
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        <fr:link type="local" href="hodge-theory-iii-introduction.xml" addr="hodge-theory-iii-introduction" title="Hodge Theory III › Introduction">Introduction</fr:link>
      </html:li>

      
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        <fr:link type="local" href="hodge-theory-iii-terminology-and-notation.xml" addr="hodge-theory-iii-terminology-and-notation" title="Hodge Theory III › Terminology and notation">Terminology and notation</fr:link>
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        <fr:link type="local" href="hodge-theory-iii-5.xml" addr="hodge-theory-iii-5" title="Hodge Theory III › Cohomological descent">Cohomological descent</fr:link>
        
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            <fr:link type="local" href="hodge-theory-iii-5.1.xml" addr="hodge-theory-iii-5.1" title="Hodge Theory III › Cohomological descent › Simplicial topological spaces">Simplicial topological spaces</fr:link>
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 <html:li style="list-style-type: &quot;5.2 &quot;">
            <fr:link type="local" href="hodge-theory-iii-5.2.xml" addr="hodge-theory-iii-5.2" title="Hodge Theory III › Cohomological descent › Cohomology of simplicial topological spaces">Cohomology of simplicial topological spaces</fr:link>
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            <fr:link type="local" href="hodge-theory-iii-5.3.xml" addr="hodge-theory-iii-5.3" title="Hodge Theory III › Cohomological descent › Cohomological descent">Cohomological descent</fr:link>
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        <fr:link type="local" href="hodge-theory-iii-6.xml" addr="hodge-theory-iii-6" title="Hodge Theory III › Examples of simplicial topological spaces">Examples of simplicial topological spaces</fr:link>
        
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            <fr:link type="local" href="hodge-theory-iii-6.1.xml" addr="hodge-theory-iii-6.1" title="Hodge Theory III › Examples of simplicial topological spaces › Classifying spaces">Classifying spaces</fr:link>
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            <fr:link type="local" href="hodge-theory-iii-6.2.xml" addr="hodge-theory-iii-6.2" title="Hodge Theory III › Examples of simplicial topological spaces › Construction of hypercovers">Construction of hypercovers</fr:link>
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            <fr:link type="local" href="hodge-theory-iii-6.3.xml" addr="hodge-theory-iii-6.3" title="Hodge Theory III › Examples of simplicial topological spaces › Relative cohomology">Relative cohomology</fr:link>
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            <fr:link type="local" href="hodge-theory-iii-6.4.xml" addr="hodge-theory-iii-6.4" title="Hodge Theory III › Examples of simplicial topological spaces › Multisimplicial spaces">Multi-simplicial spaces</fr:link>
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        <fr:link type="local" href="hodge-theory-iii-7.xml" addr="hodge-theory-iii-7" title="Hodge Theory III › Supplements to §1">Supplements to §1</fr:link>
        
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            <fr:link type="local" href="hodge-theory-iii-7.1.xml" addr="hodge-theory-iii-7.1" title="Hodge Theory III › Supplements to §1 › Filtered derived category">Filtered derived category</fr:link>
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            <fr:link type="local" href="hodge-theory-iii-7.2.xml" addr="hodge-theory-iii-7.2" title="Hodge Theory III › Supplements to §1 › Supplements to the two filtrations lemma">Supplements to the two-filtrations lemma</fr:link>
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        <fr:link type="local" href="hodge-theory-iii-8.xml" addr="hodge-theory-iii-8" title="Hodge Theory III › Hodge theory of algebraic spaces">Hodge theory of algebraic spaces</fr:link>
        
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            <fr:link type="local" href="hodge-theory-iii-8.1.xml" addr="hodge-theory-iii-8.1" title="Hodge Theory III › Hodge theory of algebraic spaces › Hodge complexes">Hodge complexes</fr:link>
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 <html:li style="list-style-type: &quot;8.2 &quot;">
            <fr:link type="local" href="hodge-theory-iii-8.2.xml" addr="hodge-theory-iii-8.2" title="Hodge Theory III › Hodge theory of algebraic spaces › Separated algebraic spaces">Separated algebraic spaces</fr:link>
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 <html:li style="list-style-type: &quot;8.3 &quot;">
            <fr:link type="local" href="hodge-theory-iii-8.3.xml" addr="hodge-theory-iii-8.3" title="Hodge Theory III › Hodge theory of algebraic spaces › Hodge theory of simplicial schemes">Hodge theory of simplicial schemes</fr:link>
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        <fr:link type="local" href="hodge-theory-iii-9.xml" addr="hodge-theory-iii-9" title="Hodge Theory III › Examples and applications">Examples and applications</fr:link>
        
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            <fr:link type="local" href="hodge-theory-iii-9.1.xml" addr="hodge-theory-iii-9.1" title="Hodge Theory III › Examples and applications › Cohomology of groups and of classifying spaces">Cohomology of groups and of classifying spaces</fr:link>
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            <fr:link type="local" href="hodge-theory-iii-9.2.xml" addr="hodge-theory-iii-9.2" title="Hodge Theory III › Examples and applications › Hodge theory of smooth hypersurfaces, following Griffiths">Hodge theory of smooth hypersurfaces, following Griffiths</fr:link>
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 <html:li style="list-style-type: &quot;9.3 &quot;">
            <fr:link type="local" href="hodge-theory-iii-9.3.xml" addr="hodge-theory-iii-9.3" title="Hodge Theory III › Examples and applications › Construction of complexes of first-order differential operators">Construction of complexes of first-order differential operators</fr:link>
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 <html:li style="list-style-type: &quot;10. &quot;">
        <fr:link type="local" href="hodge-theory-iii-10.xml" addr="hodge-theory-iii-10" title="Hodge Theory III › Hodge theory in level  1">Hodge theory in level <fr:tex display="inline"><![CDATA[\leqslant  1]]></fr:tex></fr:link>
        
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            <fr:link type="local" href="hodge-theory-iii-10.1.xml" addr="hodge-theory-iii-10.1" title="Hodge Theory III › Hodge theory in level  1 › 1-motives">1-motives</fr:link>
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            <fr:link type="local" href="hodge-theory-iii-10.2.xml" addr="hodge-theory-iii-10.2" title="Hodge Theory III › Hodge theory in level  1 › 1-motives and bi-extensions">1-motives and bi-extensions</fr:link>
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 <html:li style="list-style-type: &quot;10.3 &quot;">
            <fr:link type="local" href="hodge-theory-iii-10.3.xml" addr="hodge-theory-iii-10.3" title="Hodge Theory III › Hodge theory in level  1 › Algebraic interpretation of the mixed {H}^1: the case of curves">Algebraic interpretation of the mixed <fr:tex display="inline"><![CDATA[\operatorname {H}^1]]></fr:tex>: the case of curves</fr:link>
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 <html:li style="list-style-type: &quot;10.4 &quot;">
            <fr:link type="local" href="hodge-theory-iii-10.4.xml" addr="hodge-theory-iii-10.4" title="Hodge Theory III › Hodge theory in level  1 › Translation of a theorem of Picard">Translation of a theorem of Picard</fr:link>
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    </html:ol></fr:li>

  <fr:li><fr:link type="local" href="hodge-theory-bibliography.xml" addr="hodge-theory-bibliography" title="Complete list of references"><fr:strong>Bibliography</fr:strong></fr:link></fr:li></fr:ul>
  </fr:mainmatter>
  <fr:backmatter />
</fr:tree>
