On the algebraic difference equations un+2un=ψ(un+1) in ℝ*+, related to a family of elliptic quartics in the plane.
Bastien, G. ; Rogalski, M.
Advances in Difference Equations [electronic only], Tome 2005 (2005), p. 227-261 / Harvested from The Electronic Library of Mathematics
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Publié le : 2005-01-01
DOI : https://doi.org/10.1155/ADE.2005.227
EUDML-ID : urn:eudml:doc:52828 
@article{05038332,
     title = {On the algebraic difference equations },
     journal = {Advances in Difference Equations [electronic only]},
     volume = {2005},
     year = {2005},
     pages = {227-261},
     doi = {10.1155/ADE.2005.227},
     zbl = {1100.39003},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05038332}
}

Bastien, G.; Rogalski, M. On the algebraic difference equations . Advances in Difference Equations [electronic only], Tome 2005 (2005) pp. 227-261. doi : 10.1155/ADE.2005.227. http://gdmltest.u-ga.fr/item/05038332/