The $P^\prime$-operator, the $Q^\prime$-curvature, and the CR tractor calculus
The $P^\prime$-operator, the $Q^\prime$-curvature, and the CR tractor calculus
复制标题
$P^prime$-算子、$Q^prime$-曲率和 CR 拖拉机微积分
DOI:
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
A. Gover
中科院分区:
文献类型:
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作者:
Jeffrey S. Case;A. Gover
We establish an algorithm which computes formulae for the CR GJMS operators, the $P^\prime$-operator, and the $Q^\prime$-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 $P^\prime$-operator, and shows that the $Q^\prime$-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 $P^\prime$-operator and $Q^\prime$-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.
影响因子:
1
作者:
C. Fefferman;K. Hirachi
通讯作者:
C. Fefferman;K. Hirachi
影响因子:
0.5
作者:
K. Hirachi
通讯作者:
K. Hirachi
DOI:
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发表时间:
2007
期刊:
IMA in Math.and Appl. 144
影响因子:
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作者:
M.E.Dokukin;K.Togo;and M.Inoue;武田 三男;K. Hirachi
通讯作者:
K. Hirachi