Is there a way to follow particular authors on arxiv? I have googled and it is possible to create rss feeds for categories; nothing about rss feeds for authors.

Is there a way to automatically follow a large number of authors on arxiv?
Yes. Go to https://arxiv.org/search/ and search the author name (choose author name from the pull down menu on the right).



Original deprecated method:

Yes. It seems to be a link of the following form: 

http://arxiv.org:443/find/math/1/au:+***AuthorIDHere***/0/1/0/all/0/1