... Journal of Mathematical Analysis and Applications, vol. 312, no. 1, pp. 24–32,2005.[11] Q. Zhang, Existence of positive solutions for a class of p(x)-Laplacian systems,” Journal of Math-ematical ... supΩp(x).Because of the nonhomogeneity of p(x)-Laplacian, p(x)-Laplacian problems are morecomplicated than those of p-Laplacian ones, many results and methods for p-Laplacianproblems are invalid for ... 2000.[16] A. M. Fink, J. A. Gatica, G. E. Hern´andez, and P. Waltman, “Approximation of solutions of sin-gular second order boundary value problems,” SIAM Journal on Mathematical Analysis, vol....