A classification of the nilpotent triangular matrices
Compositio Mathematica, Volume 55 (1985) no. 1, pp. 89-133.
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     author = {Hesselink, Wim H.},
     title = {A classification of the nilpotent triangular matrices},
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     pages = {89--133},
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     number = {1},
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     mrnumber = {791648},
     language = {en},
     url = {http://www.numdam.org/item/CM_1985__55_1_89_0/}
}
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Hesselink, Wim H. A classification of the nilpotent triangular matrices. Compositio Mathematica, Volume 55 (1985) no. 1, pp. 89-133. http://www.numdam.org/item/CM_1985__55_1_89_0/

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