The Math Department does not maintain waitlists for any of our courses. You will need to continue to check UAccess for an open seat. If, on the first day of class, you have not acquired a seat in your desired section, you may contact the instructor and request their permission to add you.
Please note that instructors will generally wait for UAccess to close to registration (usually 8 days after the start of the semester) before they add additional students. However, it is not a bad idea to start talking with instructors.