On adjunctions for Fourier-Mukai transforms
On adjunctions for Fourier-Mukai transforms
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关于 Fourier-Mukai 变换的附加
DOI:
10.1016/j.aim.2012.06.007
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发表时间:
2012
影响因子:
1.7
通讯作者:
Anno R
中科院分区:
文献类型:
--
作者:
Anno R
We show that the adjunction counits of a Fourier–Mukai transform Φ:D(X1)→D(X2) arise from maps of the kernels of the corresponding Fourier–Mukai transforms. In a very general setting of proper separable schemes of finite type over a field we write down these maps of kernels explicitly –facilitating the computation of the twist (the cone of an adjunction counit) of Φ. We also give another description of these maps, better suited to computing cones if the kernel of Φ is a pushforward from a closed subscheme Z⊂X1×X2. Moreover, we show that we can replace the condition of properness of the ambient spaces X1and X2by that of Z being proper over them and still have this description apply as is. This can be used, for instance, to compute spherical twists on non-proper varieties directly and in full generality.
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DOI:
10.1007/bfb0066287
发表时间:
1971
期刊:
arXiv: Algebraic Geometry
影响因子:
--
作者:
L. Illusie
通讯作者:
L. Illusie
DOI:
10.1007/3-540-27950-4
发表时间:
2005-10
期刊:
--
影响因子:
--
作者:
柏原 正樹;P. Schapira
通讯作者:
柏原 正樹;P. Schapira
影响因子:
1.8
作者:
L. Illusie
通讯作者:
L. Illusie
DOI:
10.1007/978-3-540-85420-3
发表时间:
2009-02
期刊:
--
影响因子:
--
作者:
J. Lipman;M. Hashimoto
通讯作者:
J. Lipman;M. Hashimoto
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
A. Kuznetsov
通讯作者:
A. Kuznetsov