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15 votes
7 answers
6k views

Why are online lecture notes usually not accessible to non-students?

When looking for online lecture notes, I notice that most of the time you have to be a student and login in using your institution information to get access. Why would a professor not show the lecture ...
zdm's user avatar
  • 819
7 votes
1 answer
1k views

Are there any undergraduate research programs available online? [duplicate]

Is there something like an undergraduate research programme (given by a good institution) in mathematics/theoretical physics which provides a research opportunity in which I can collaborate online and ...
user10024's user avatar
  • 261