@article{01607433, title = {On the projections of Laplacians under Riemannian submersions.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {25}, year = {2001}, pages = {33-41}, doi = {10.1155/S0161171201003751}, zbl = {0978.53078}, language = {en}, url = {http://dml.mathdoc.fr/item/01607433} }
Le, Huiling. On the projections of Laplacians under Riemannian submersions.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 33-41. doi : 10.1155/S0161171201003751. http://gdmltest.u-ga.fr/item/01607433/