The inverse of a parameter family of degenerate operators and applications to the Kohn-Laplacian
The inverse of a parameter family of degenerate operators and applications to the Kohn-Laplacian
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简并算子参数族的逆及其在 Kohn-Laplacian 中的应用
DOI:
10.1016/j.aim.2014.12.041
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发表时间:
2015
影响因子:
1.7
通讯作者:
C. Iwasaki
中科院分区:
文献类型:
--
作者:
W. Bauer ;K. Furutani ;C. Iwasaki
By employing a new reduction procedure we derive explicit expressions for the fundamental solutions of a family P k, λ of degenerate second order differential operators on R N+ ℓ. Here λ is a complex parameter located in the strip| Re (λ)|< N+ k− 1. As is pointed out in [2] P k, 0 has a geometric background and arises as a Grushin-type operator induced by a sub-Riemannian structure on a k+ 1-step nilpotent Lie group. Our method leads to new formulas for the inverse of the Kohn-Laplacian Δ λ which has been widely studied before in the framework of pseudo-convex domains and CR geometry. As an application we show that in all cases the fundamental solutions have a meromorphic extension in the parameter λ to C∖ Q. All poles are simple and Q⊂ R is an explicitly given discrete set. We recover the invertibility of Δ 1 modulo the classical Szegö projection. This phenomenon had been observed before in [11].
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DOI:
10.1007/978-0-8176-4995-1
发表时间:
2010-10
期刊:
--
影响因子:
--
作者:
O. Calin;D. Chang;Kenro Furutani;C. Iwasaki
通讯作者:
O. Calin;D. Chang;Kenro Furutani;C. Iwasaki
影响因子:
1.7
作者:
W. Bauer ;K. Furutani ;C. Iwasaki
通讯作者:
C. Iwasaki
影响因子:
0.8
作者:
Yoshiaki Hashimoto;T. Matsuzawa
通讯作者:
T. Matsuzawa
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
M. Peloso
通讯作者:
M. Peloso