@article{01821314,
title = {Strict positive definiteness on spheres via disk polynomials.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {30},
year = {2002},
pages = {715-724},
doi = {10.1155/S0161171202108076},
zbl = {1039.42007},
language = {en},
url = {http://dml.mathdoc.fr/item/01821314}
}
Menegatto, V. A.; Peron, A. P. Strict positive definiteness on spheres via disk polynomials.. International Journal of Mathematics and Mathematical Sciences, Tome 30 (2002) pp. 715-724. doi : 10.1155/S0161171202108076. http://gdmltest.u-ga.fr/item/01821314/