In this paper the reduction of the modified Poincaré linear differential equation with one $n$-tuple regular singularity to the Birkhoff canonical matrix form is given.
@article{107792, author = {Ice B. Risteski}, title = {Reduction of the modified Poincar\'e differential equation to Birkhoff matrix form}, journal = {Archivum Mathematicum}, volume = {037}, year = {2001}, pages = {103-113}, zbl = {1090.34005}, mrnumber = {1838407}, language = {en}, url = {http://dml.mathdoc.fr/item/107792} }
Risteski, Ice B. Reduction of the modified Poincaré differential equation to Birkhoff matrix form. Archivum Mathematicum, Tome 037 (2001) pp. 103-113. http://gdmltest.u-ga.fr/item/107792/
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