Re: "subtraction" in derived categories

From: Aaron Bergman (abergman_at_physics.utexas.edu)
Date: 03/20/05

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    Date: 19 Mar 2005 19:15:00 -0500

    In article <d1i4ol$1qk$1@dizzy.math.ohio-state.edu>,
     Urs.Schreiber@uni-essen.de (Urs Schreiber) wrote:

    >
    > Has anything like this ever been considered in the literature?

    Sure. You can probably even find some of the references in Aspinwall's
    review.

    Bridgeland's paper, math.AG/0212237, for example, formalizes a lot of
    this stuff. By doing a citation search, I just found another paper my
    Gorodentscev, Kuleshov and Rudakov which claims to generalize
    Bridgeland's construction, math.AG/0312442.

    There's also a series of five papers by Joyce which seem to be relevant
    given the abstracts. They start with math.AG/0312190. The papers seem
    scary, however, and I haven't looked at them.

    Aaron

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