@article{GDZPPN001167014, title = {On the Uniform Positivity of a Certain Finite Difference Matrix.}, journal = {Numerische Mathematik}, volume = {11}, year = {1968}, pages = {46-52}, zbl = {0155.47001}, url = {http://dml.mathdoc.fr/item/GDZPPN001167014} }
HELLER, S. On the Uniform Positivity of a Certain Finite Difference Matrix.. Numerische Mathematik, Tome 11 (1968) pp. 46-52. http://gdmltest.u-ga.fr/item/GDZPPN001167014/