不等式出现于数学的各个分支,并广泛应用于数学、物理学、力学和工程技术领域.给出了双边不等式成立的一个充分条件,并得到了几个与Seiffert平均、广义海伦平均、算术平均和加权几何平均有关的新的双边不等式.
Inequalities appear in all branches of mathematics, and applied in the fields of mathematics, physics, mechanics and engineering. In this paper, a sufficient condition ensuring companion inequalities is given and some new companion inequalities related to Seiffert, generalized Heronian, arithmetic and weighted geometric means are obtained.