Group of rational numbers
This article is about a particular group, i.e., a group unique upto isomorphism. View specific information (such as linear representation theory, subgroup structure) about this group
View a complete list of particular groups (this is a very huge list!)[SHOW MORE]
The group of rational numbers, also called the additive group of rational numbers, is denoted as , and is defined as follows:
It is the group whose elements are rational numbers, the group operation is addition of rational numbers, the identity element is zero, and the inverse is the negative. In the tuple notation, it is written as .