@article{05823132, title = {Spectrum of linear difference operators and the solvability of nonlinear discrete problems.}, journal = {Discrete Dynamics in Nature and Society}, volume = {2010}, year = {2010}, doi = {10.1155/2010/757416}, zbl = {1213.39020}, language = {en}, url = {http://dml.mathdoc.fr/item/05823132} }
Ma, Ruyun; Xu, Youji; Gao, Chenghua. Spectrum of linear difference operators and the solvability of nonlinear discrete problems.. Discrete Dynamics in Nature and Society, Tome 2010 (2010) . doi : 10.1155/2010/757416. http://gdmltest.u-ga.fr/item/05823132/