来源:Calculus of Variations and Partial Differential Equations, 2011, 41(3-4): 511-534.
DOI:10.1007/s00526-010-0374-7
摘要
For a class of minimization problems, where the functionals are weakly lower semicontinuous, we present, through the treatment of some semi-linear or quasi-linear type problems, techniques to show the existence of a minimizer.