Geodesic
Subgroups of the orthogonal group that contain a group of quasidiagonal matrices
Zapiski Nauchnykh Seminarov POMI, Rings and modules. Part 2, Tome 94 (1979), pp. 73-80

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In the group of real orthogonal matrices we study the lattice of subgroups containing a group of quasidiagonal orthogonal matrices of fixed type with at most one first-order block. 
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     author = {S. L. Krupetskii},
     title = {Subgroups of the orthogonal group that contain a group of quasidiagonal matrices},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {73--80},
     publisher = {mathdoc},
     volume = {94},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1979_94_a7/}
}
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S. L. Krupetskii. Subgroups of the orthogonal group that contain a group of quasidiagonal matrices. Zapiski Nauchnykh Seminarov POMI, Rings and modules. Part 2, Tome 94 (1979), pp. 73-80. http://geodesic.mathdoc.fr/item/ZNSL_1979_94_a7/