Maher Berzig, Ecole Superieure des Sciences et Techniques de Tunis
3 November 2014
Theorem 3.1 is a particular case of Corolloray 3.3. Indeed, by taking B(x,y) = A(x,y,x), one can check that if the conditions of the Theorem 3.1 are satisfied for the operator A, then the conditions of the Corollary 3.3 are satisfied for the operator B, and the result follows from the corollary.
Competing interests
The author declare that they have no competing interests.
Remark
3 November 2014
Theorem 3.1 is a particular case of Corolloray 3.3. Indeed, by taking B(x,y) = A(x,y,x), one can check that if the conditions of the Theorem 3.1 are satisfied for the operator A, then the conditions of the Corollary 3.3 are satisfied for the operator B, and the result follows from the corollary.
Competing interests
The author declare that they have no competing interests.