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Matrices of SL that are the Product of Two Skew-Symmetric Matrices
Dong, Lei; Huang, Lei; Shao, Changpeng; Wen, Yong
2017-03-01
发表期刊ADVANCES IN APPLIED CLIFFORD ALGEBRAS
ISSN0188-7009
卷号27期号:1页码:475-489
摘要The Jordan forms of matrices that are the product of two skew-symmetric matrices over a field of characteristic have been a research topic in linear algebra since the early twentieth century. For such a matrix, its Jordan form is not necessarily real, nor does the matrix similarity transformation change the matrix into the Jordan form. In 3-D oriented projective geometry, orientation-preserving projective transformations are matrices of , and those matrices of that are the product of two skew-symmetric matrices are the generators of the group . The canonical forms of orientation-preserving projective transformations under the group action of -similarity transformations, called -Jordan forms, are more useful in geometric applications than complex-valued Jordan forms. In this paper, we find all the -Jordan forms of the matrices of that are the product of two skew-symmetric matrices, and divide them into six classes, so that each class has an unambiguous geometric interpretation in 3-D oriented projective geometry. We then consider the lifts of these transformations to SO(3, 3) by extending the action of from points to lines in space, so that in the vector space spanned by the Plucker coordinates of lines these projective transformations become special orthogonal transformations, and the six classes are lifted to six different rotations in 2-D planes of .
关键词Oriented projective geometry Line geometry SL(4, R) Product of two skew-symmetric matrices SL(4, R)-Jordan form
DOI10.1007/s00006-016-0701-y
语种英语
资助项目National High-tech R and D Program of China (863 Program)[2015AA011802]
WOS研究方向Mathematics ; Physics
WOS类目Mathematics, Applied ; Physics, Mathematical
WOS记录号WOS:000396031500035
出版者SPRINGER BASEL AG
引用统计
文献类型期刊论文
条目标识符http://ir.amss.ac.cn/handle/2S8OKBNM/24953
专题系统科学研究所
通讯作者Huang, Lei
作者单位Chinese Acad Sci, Acad Math & Syst Sci, Key Lab Math Mech, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Dong, Lei,Huang, Lei,Shao, Changpeng,et al. Matrices of SL that are the Product of Two Skew-Symmetric Matrices[J]. ADVANCES IN APPLIED CLIFFORD ALGEBRAS,2017,27(1):475-489.
APA Dong, Lei,Huang, Lei,Shao, Changpeng,&Wen, Yong.(2017).Matrices of SL that are the Product of Two Skew-Symmetric Matrices.ADVANCES IN APPLIED CLIFFORD ALGEBRAS,27(1),475-489.
MLA Dong, Lei,et al."Matrices of SL that are the Product of Two Skew-Symmetric Matrices".ADVANCES IN APPLIED CLIFFORD ALGEBRAS 27.1(2017):475-489.
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