[1]  胡爱莲,张正杰.含有Sobolev-Hardy临界指标的奇异椭圆方程Neumann 问题无穷多解的存在性.数学物理学报, 2007, 27(6): 1025--1034

[2] Brezis H, Vàzquez J L.  Blowup solutions of some nonlinear elliptic problems. Rev Mat Univ Comp Madrid, 1997, 10: 443--469

[3]  Adimurthi  Filippas S, Tertikas A. On the best constant of Hardy-Sobolev inequalities. Nonlinear Analysis, 2009, 70: 2826--2833

[4]  Aubin T. Probléme isopérimétric et espace de Sobolev. J Differential Geom, 1976, 11: 573--598

[5] Talenti G. Best constant in Sobolev inequality. Ann Mat Pura Appl, 1976, 110: 353--372

[6] Tertikas A, Zographopoulos N B. Best constants in the Hardy-Rellich inequalities and related improvements. Adv Math, 2007, 209: 407--459

[7]  Stubbe J. Bounds on the number of bound states for potentials with critical decay at infinity. J Math Phys, 1990, 31: 1177--1180