@article{Sun2023, 
author = {Chaochao Sun and Yuanbo Liu},
title = {The Pontryagin dual of the multiplicative group of positive rational numbers},
year = {2023},
journal = {AIMS Mathematics},
volume = {8},
number = {9},
pages = {20351-20360},
keywords = {Pontryagin dual, topological generator, Hilbert space, representation},
url = {https://www.sciopen.com/article/10.3934/math.20231037},
doi = {10.3934/math.20231037},
abstract = {The Pontryagin dual of the multiplicative group of positive rational numbers is constructed. Then we study its topological generators and representations.}
}