First symplectic Chern class and Maslov indices

First symplectic Chern class and Maslov indices
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第一辛陈级和马斯洛夫指数

DOI:
10.1007/bf01086635
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发表时间:
1987
期刊:
Journal of Soviet Mathematics
影响因子:
--
通讯作者:
V. Turaev
V. Turaev
中科院分区:
--
文献类型:
--
作者:
V. Turaev

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本文给出了群 G=Sp(n,ℝ) 条形分辨率下的二维余循环的显式公式,它表示 BGδ 上自然 n 维复向量丛的第一 Chern 类。结果表明,该余循环与 ℝ2 拉格朗日子空间的 Maslov 指数密切相关
An explicit formula is given in this paper for a two-dimensional cocycle in the bar resolution of the group G=Sp(n,ℝ), which represents the first Chern class of the natural n-dimensional complex vector bundle over BGδ. It is shown that this cocycle is closely connected with the Maslov indices of Lagrangian subspaces of ℝ2