E. Yanagida, STRUCTURE OF RADIAL SOLUTIONS TO X-VERTICAL-BAR)VERTICAL-BAR-U-VERTICAL-BAR(P-1)U=0 IN R(N)(K(VERTICAL), SIAM journal on mathematical analysis, 27(4), 1996, pp. 997-1014
The elliptic equation equation Delta u + K(r)\u\(p-1)u = 0 in R(n) is
studied, where r = \x\,p > 1,n > 2, and K(r) > 0 for r is an element o
f (0,infinity). If rK(r)(r)/K(r) is nonincreasing in r, then the struc
ture of radial solutions is determined completely by analyzing lineari
zed equations around the solutions.