The P'-operator, the Q'-curvature, and the CR tractor calculus
The P'-operator, the Q'-curvature, and the CR tractor calculus
复制标题
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
中科院分区:
文献类型:
--
作者:
Jeffrey S. Case;A. Gover
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.
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:
--
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