Hodified Ritz method

[1] COURANT H, 1920, METH MATH PHYS, P149

[2] The theory and calculation of screening constants [J]. PHYSICAL REVIEW, 1930, 36 (05): : 0878 - 0892

[3] Successive approximations by the Rayleigh-Ritz variation method [J]. PHYSICAL REVIEW, 1933, 43 (10): : 0830 - 0833

[4] Lower limit for the ground state of the helium atom [J]. PHYSICAL REVIEW, 1932, 41 (06): : 839 - 839

[5] A lower limit for the ground state of the helium atom [J]. PHYSICAL REVIEW, 1932, 40 (05): : 0797 - 0799

[1] COURANT H, 1920, METH MATH PHYS, P149

[2] The theory and calculation of screening constants [J]. PHYSICAL REVIEW, 1930, 36 (05): : 0878 - 0892

[3] Successive approximations by the Rayleigh-Ritz variation method [J]. PHYSICAL REVIEW, 1933, 43 (10): : 0830 - 0833

[4] Lower limit for the ground state of the helium atom [J]. PHYSICAL REVIEW, 1932, 41 (06): : 839 - 839

[5] A lower limit for the ground state of the helium atom [J]. PHYSICAL REVIEW, 1932, 40 (05): : 0797 - 0799