Mathematically Oriented Disciplines
I feel that I cannot do original research unless I become really strong in the above mentioned subjects in mathematics. Is this claim correct?


If it is, then what would you do about it?  Probably, take one math class per semester, and in the summer too if possible, and do some additional reading on your own when classes are not in session.

If the claim is not correct... what harm would it do to strengthen your math skills, even if they turn out not to be essential for your field?