TY  - JOUR
AU  - Gómez-Ullate Otaiza, David
AU  - Kamran, Niky
AU  - Milson, Robert
PY  - 2005
DO  - 10.1088/0305-38/9/011
SN  - 0305-4470
UR  - https://hdl.handle.net/20.500.14352/51461
T2  - Journal of physics  A: Mathematical and general
AB  - We propose a more direct approach to constructing differential operators that preserve polynomial subspaces than the one based on considering elements of the enveloping algebra of sl(2). This approach is used here to construct new exactly solvable and...
LA  - eng
M2  - 2005
PB  - IOP science
KW  - Differential-operators
KW  - Lame equation
KW  - Potentials
KW  - Algebra
TI  - Quasi-exact solvability and the direct approach to invariant subspaces
TY  - journal article
VL  - 38
ER  -