“…If it is not the case, then there exists a subsequence of {( , , )}, which can be still as {( , , )} without loss of generality, such that for each , ( , ) is the local minimizer of ( ) with finite ( , ), and ̸ = 0, when → ∞, we have → +∞ and ( , ) → ( * , * ). By (9) we know that…”