A topological construction of the weight filtration
A topological construction of the weight filtration
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权重过滤的拓扑结构
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发表时间:
2010
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通讯作者:
L. Migliorini
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作者:
Fouad El Zein;D. Le;L. Migliorini
Let $${j: X setminus Y,longrightarrow,X}$$ be the embedding of the complement of a Cartier divisor Y in a complex algebraic variety X, and let $${mathbb K}$$ be a perverse sheaf on X Y. With the aid of the specialization functor introduced by Verdier in Analyse et Topologie sur les espaces singuliers vol. II, III, Astérisque 101–102:332–364 [13], we define a filtration W of topological origin on the perverse complex $${Rj_{*}mathbb K}$$ which should play the role of the weight filtration when $${mathbb K}$$ is a local system underlying a polarised variation of Hodge structures.