In this paper, we introduce an algebraic structure called a diquandle which is a set equipped with two quandle operations satisfying the right distributive laws. We discuss various examples and some properties of diquandles and also show that a diquandle enables us to distinguish oriented dichromatic links by telling that their coloring sets are different when their arcs are colored by elements of the diquandle.

中文翻译：

---

定向二色链接的双倍数和不变量

在本文中，我们介绍了一种称为 diquandle 的代数结构，它是一个具有两个满足右分配律的 quandle 操作的集合。我们讨论了 diquandle 的各种示例和一些属性，并且还表明 diquandle 使我们能够通过告诉它们的着色集在它们的弧被 diquandle 的元素着色时是不同的来区分定向的二色链接。