Space-like isothermic surfaces and Grassmannian systems

Space-like isothermic surfaces and Grassmannian systems
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DOI:
10.21099/tkbjm/1496165030
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发表时间:
2006-06
影响因子:
0.7
通讯作者:
M. P. Dussan
M. P. Dussan
中科院分区:
--
文献类型:
--
作者:
M. P. Dussan

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.证明了伪黎曼空间Rn(cid:1)j ; j中的类空等温曲面与O <$n(cid:1)j <$1; j <$1 <$= O <$n(cid:1)j ; j <$(cid:2)O <$1; 1 <$-系统相关联,并证明了具有两个简单极点的有理映射在O <$n(cid:1)j <$1; j <$1 <$= O <$n(cid:1)j ; j <$1 <$= O <$n(cid:2)O <$1; 1 π-系统对应于Rn(cid:1)j ; j中类空曲面的Ribaucour和Darboux变换。
. We show that space-like isothermic surfaces in the pseudo-riemannian space R n (cid:1) j ; j are associated to O ð n (cid:1) j þ 1 ; j þ 1 Þ = O ð n (cid:1) j ; j Þ (cid:2) O ð 1 ; 1 Þ -system, and that the action of a rational map with two simple poles on the space of local solutions of O ð n (cid:1) j þ 1 ; j þ 1 Þ = O ð n (cid:1) j ; j Þ (cid:2) O ð 1 ; 1 Þ -system correspond to Ribaucour and Darboux transformations to space-like surfaces in R n (cid:1) j ; j .