I received no response to email from a potential PhD supervisor (USA).
I have mailed several professors in US universities requesting for supervision for potential PhD applicants.
I have not received responses from most of them.
Should I apply to the ones I've received responses from only?
There are several professors who have not responded yet, but I am quite interested in doing research under their supervision.
Should I apply to their PhD program still or find another supervisor?
Thank you for your time.