Critical case of multiple pairs of pure imaginary roots of a nonautonomous essentially nonlinear differential system.
Vitrichenko, I.
Memoirs on Differential Equations and Mathematical Physics, Tome 12 (1997), p. 140-144 / Harvested from The Electronic Library of Mathematics
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Publié le : 1997-01-01
EUDML-ID : urn:eudml:doc:230393 
@article{01209883,
     title = {Critical case of multiple pairs of pure imaginary roots of a nonautonomous essentially nonlinear differential system.},
     journal = {Memoirs on Differential Equations and Mathematical Physics},
     volume = {12},
     year = {1997},
     pages = {140-144},
     zbl = {0912.34045},
     language = {en},
     url = {http://dml.mathdoc.fr/item/01209883}
}

Vitrichenko, I. Critical case of multiple pairs of pure imaginary roots of a nonautonomous essentially nonlinear differential system.. Memoirs on Differential Equations and Mathematical Physics, Tome 12 (1997) pp. 140-144. http://gdmltest.u-ga.fr/item/01209883/