1Catrina F, Wang Z Q. On the Caffarelli-Kohn-Nirenberg inequalities: sharp constants, existence (and nonexistence), and symmetry of extermal functions. Comm Pure Appl Math, 53:1-30 (2000)
2Ekeland I, Ghoussoub N. Selected new aspects of the calculus of variations in the large. Bull Amer Math Soc, 39:207-265 (2002)
3Ferrero A, Gazzola F. Existence of solutions for singular critical growth semilinear elliptic equations. J Differential Equations, 177:494-522 (2001)
4Ghoussoub N, Yuan C. Multiple solutions for quasi-linear PDEs involving the critical Sobolev and Hardy exponents. Trans Amer Math Soc, 352:5703-5743 (2000)
5Jannelli E. The role played by space dimension in elliptic critcal problems. J Differential Equations, 156: 407-426 (1999)
6Ni N W, Nirenberg L. Symmetry and related propeties via the maximum principle. Comm Math Phys, 69: 209-243 (1979)
7Terracini S. On positive solutions to a class equations with a singular coefficient and critical exponent. Adv Differential Equations, 2:241-264 (1996)
8Cao D, Peng S. A global compactness result for singular elliptic problems involving critical Sobolev exponent. Proc Amer Math Soc, 131:1857-1866 (2003)
9Azorero J P G, Alonso I P. Hardy inequalities and some critical elliptic and parabolic problems. J Differential Equatons, 144:441-476 (1998)
10Cao D, Peng S. A note on the sign-changing solutions to elliptic problems with critical Sobolev and Hardy terms. J Differential Equations, 193:424-434 (2003)