"关于代数学的" can be translated into English as "regarding/concerning algebra" or "on the subject of algebra."
Here are a few example sentences to illustrate the usage:
1、 Regarding algebra, I have some questions to ask.
（关于代数学，我有几个问题要问。）
2、 Concerning algebra, I think we need more practice.
（关于代数学，我认为我们需要更多的练习。）
3、 On the subject of algebra, the professor gave a detailed explanation.
（关于代数学，教授给出了详细的解释。）