Authors: BESSIS N BESSIS G

Citation: N. Bessis et G. Bessis, OPEN PERTURBATION AND THE RICCATI-EQUATION - ALGEBRAIC DETERMINATION OF THE QUARTIC ANHARMONIC-OSCILLATOR ENERGIES AND EIGENFUNCTIONS, Journal of mathematical physics, 38(11), 1997, pp. 5483-5492

Authors: BESSIS N BESSIS G

Citation: N. Bessis et G. Bessis, PERTURBED ENERGIES AND EIGENFUNCTIONS OF THE CURVED-SPACE AND FLAT-SPACE ISOTROPIC OSCILLATOR VIA THE RICCATI EQUATION, Physical review. A, 53(3), 1996, pp. 1330-1339

Authors: BESSIS N BESSIS G

Citation: N. Bessis et G. Bessis, PERTURBATION-THEORY USING SERIES EXPANSIONS AND THE RICCATI EQUATION, The Journal of chemical physics, 103(8), 1995, pp. 3006-3013

Authors: BESSIS N BESSIS G

Citation: N. Bessis et G. Bessis, PERTURBED LADDER-OPERATOR METHOD - AN ALGEBRAIC RECURSIVE SOLUTION OFTHE PERTURBED MORSE-OSCILLATOR EIGENEQUATION, Physical review. A, 50(6), 1994, pp. 4506-4520

Authors: BESSIS N BESSIS G

Citation: N. Bessis et G. Bessis, PERTURBED FACTORIZATION OF THE SINGULAR ANHARMONIC-OSCILLATOR EIGENEQUATION, Journal of mathematical physics, 35(12), 1994, pp. 6244-6269