First, select your female mathematician
Here is a list of the women mathematicians, mathematics professors, statisticians, and computer scientists in the library's biography database, Biography Reference Center.
Here is a chronological list of women mathematicians maintained by Agnes Scott College. Their definition of mathematician is very broad.
Here is Wikipedia's category for women mathematicians. It is pretty comprehensive.
Find scholarly articles
In the OneSearch bar at the top of the library home page, enter your mathematician's name surrounded by quotation marks.
You might also try combining her name with what she was known for developing, inventing, solving, or innovating. For example:
"Helen G. Grundman" AND "Harshad numbers"
("Fariba Fahroo" OR "Fahroo, Fariba") AND "pseudospectral optimal control"
Boolean operators, as used in the above examples, tell the library databases how to combine your keywords into a precise search.