The P'-operator, the Q'-curvature, and the CR tractor calculus

The P'-operator, the Q'-curvature, and the CR tractor calculus
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P 算子、Q 曲率和 CR 拖拉机微积分

DOI:
10.2422/2036-2145.201710_001
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发表时间:
2020
影响因子:
1.4
通讯作者:
A. Gover
A. Gover
中科院分区:
数学3区
文献类型:
--
作者:
Jeffrey S. Case;A. Gover

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我们建立了一个算法,计算公式的CR GJMS 算子,P0-算子,和Q 0-曲率的CR拖拉机。当 应用于无挠伪爱因斯坦接触形式,该算法既给出了 CR GJMS运算符和P0运算符的显式因式分解,并显示 Q 0-曲率是常数,该常数明确表示为 韦伯斯特标量曲率。我们也使用我们的算法来推导局部公式 研究了五维伪爱因斯坦流形的P0-算子和Q 0-曲率。Burns-Epstein不变量与马鲁加梅公式的比较 作为一个pseudohermitian不变量的积分产生新的见解类 局部pseudohermitian不变量的总积分是独立的 伪爱因斯坦接触形式的选择。
We establish an algorithm which computes formulae for the CR GJMS operators, the P0-operator, and the Q0-curvature in terms of CR tractors. When applied to torsion-free pseudo-Einstein contact forms, this algorithm both gives an explicit factorisation of the CR GJMS operators and the P0-operator, and shows that the Q0-curvature is constant, with the constant explicitly given in terms of the Webster scalar curvature. We also use our algorithm to derive local formulae for the P0-operator and Q0-curvature of a five-dimensional pseudo-Einstein manifold. Comparison with Marugame’s formulation of the Burns-Epstein invariant as the integral of a pseudohermitian invariant yields new insights into the class of local pseudohermitian invariants for which the total integral is independent of the choice of pseudo-Einstein contact form.
DOI: 10.4310/mrl.2003.v10.n6.a9
发表时间: 2003-03
影响因子: 1
作者:
C. Fefferman;K. Hirachi
通讯作者: C. Fefferman;K. Hirachi
DOI: 10.1016/j.difgeo.2013.10.013
发表时间: 2013-02
影响因子: 0.5
作者:
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通讯作者: K. Hirachi
CR 不变量的环境度量构造
DOI: --
发表时间: 2007
期刊: IMA in Math.and Appl. 144
影响因子: --
作者:
M.E.Dokukin;K.Togo;and M.Inoue;武田 三男;K. Hirachi
通讯作者: K. Hirachi