论文标题
$ r（x），r（a，x）\ mbox {and} rw（a，x）$的属性
Properties of $R(X), R(a, X) \mbox{ and } RW(a, X)$
论文作者
论文摘要
在Banach空间中的度量固定点理论的背景下，三个模量发挥了重要作用。这些是R（X），R（A，X）和RW（A，X）。本文着眼于他们的一些特性。还研究了当他们以1的价值为1时发生的事情。还考虑了这些模量在双空间中设置的情况。
In the context of metric fixed point theory in Banach spaces three moduli have played an important role. These are R(X), R(a, X) and RW(a, X). This paper looks at some of their properties. Also investigated is what happens when they take on the value of 1. The situation where these moduli are set in dual space is also considered.
