A reformulation of the Hodge conjecture in terms of derived algebraic cycles - MathOverflow most recent 30 from http://mathoverflow.net2013-05-21T22:09:37Zhttp://mathoverflow.net/feeds/question/108962http://www.creativecommons.org/licenses/by-nc/2.5/rdfhttp://mathoverflow.net/questions/108962/a-reformulation-of-the-hodge-conjecture-in-terms-of-derived-algebraic-cyclesA reformulation of the Hodge conjecture in terms of derived algebraic cycleslagrangiansubmanifold2012-10-05T21:30:12Z2012-10-05T22:29:30Z
<p>This question is inspired partly by an earlier MathOverflow question, in particular, see
<a href="http://mathoverflow.net/questions/30396/derived-algebraic-geometry-and-chow-rings-chow-motives" rel="nofollow">http://mathoverflow.net/questions/30396/derived-algebraic-geometry-and-chow-rings-chow-motives</a></p>
<p>Two interesting possibilities were posed, that could lead to an equivalent formulation of the Hodge conjecture:</p>
<p>Given the following condition is true, we could reformulate a 'derived' version of the Hodge conjecture
(see this <a href="http://mathoverflow.net/questions/30396/derived-algebraic-geometry-and-chow-rings-chow-motives/36371#36371" rel="nofollow">answer of Peter Scholze</a> )</p>
<blockquote>
<p>1) Any 'derived algebraic cycle' gives rise to virtual fundamental classes in all cohomology theories, which again are Hodge or Tate cycles.</p>
</blockquote>
<p>In the above sense, a 'derived algebraic cycle' is given by the Chow ring under an equivalence relation, which would then define a multiplication in it. </p>
<p>A good reference for the notion of the Chow ring is the following:</p>
<p><a href="http://www.math.jussieu.fr/~voisin/Articlesweb/weyllectures.pdf" rel="nofollow">http://www.math.jussieu.fr/~voisin/Articlesweb/weyllectures.pdf</a></p>
<p>So, my question is </p>
<p><strong>Question</strong> What progress has been made regarding 1)?</p>
<p>I greatly appreciate any answers. </p>