Smoothly versal deformations of coarse vector fields on a circumference

1991 ◽  
Vol 49 (5) ◽  
pp. 459-462
Author(s):  
N. A. Bykov
1993 ◽  
Vol 114 (3) ◽  
pp. 559-573 ◽  
Author(s):  
Ian Melbourne

AbstractWe prove an equivariant version of Galin's theorem on versal deformations of infinitesimally symplectic matrices. Matrix families of codimension zero and one are classified, and the results are used to study the movement of eigenvalues in one parameter families.


2014 ◽  
Vol E97.C (7) ◽  
pp. 661-669
Author(s):  
Ying YAN ◽  
Xunwang ZHAO ◽  
Yu ZHANG ◽  
Changhong LIANG ◽  
Zhewang MA

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