Oscillation and spectral properties of self-adjoint even order differential operators with middle terms.
Došlý, Ondřej
Electronic Journal of Qualitative Theory of Differential Equations [electronic only], Tome 2003 (2003), / Harvested from The Electronic Library of Mathematics
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Publié le : 2003-01-01
EUDML-ID : urn:eudml:doc:228230 
@article{02186187,
     title = {Oscillation and spectral properties of self-adjoint even order differential operators with middle terms.},
     journal = {Electronic Journal of Qualitative Theory of Differential Equations [electronic only]},
     volume = {2003},
     year = {2003},
     zbl = {1072.34032},
     language = {en},
     url = {http://dml.mathdoc.fr/item/02186187}
}

Došlý, Ondřej. Oscillation and spectral properties of self-adjoint even order differential operators with middle terms.. Electronic Journal of Qualitative Theory of Differential Equations [electronic only], Tome 2003 (2003) . http://gdmltest.u-ga.fr/item/02186187/