Iliev, Plamen Max Planck Institute for Mathematics, Max Planck Society;
iliev_krall_oa_2011.pdf (Any fulltext), 247KB
Iliev, P. (2011). Krall-Jacobi commutative algebras of partial differential operators. Journal DE Mathématiques Pures et Appliquées, 96(5), 446-461. doi:10.1016/j.matpur.2011.03.001.