Huang, Jizheng, Pengtao Li, Yu Liu, and Jie Xin. “The Characterizations of Hardy–Sobolev Spaces by Fractional Square Functions Related to Schrödinger Operators”. Annales Fennici Mathematici 45, no. 2 (August 1, 2020): 607–623. Accessed November 22, 2024. https://afm.journal.fi/article/view/135873.