Conversation so far:
Is Rabelais and His World: carnival and grostesque the name of a book by Mikhail Bakhtin?
Rabelais and His World is the title of Mikhail Bakhtin's dissertation on the French Renaissance writer François Rabelais.
What was Mikhail Bakhtin's dissertation Rabelais and His World about?
In Rabelais and His World, a classic of Renaissance studies, Bakhtin concerns himself with the openness of Gargantua and Pantagruel.
What happened after the disagreements about the controversial ideas discussed in Mikhail Bakhtin's Rabelais and His World ?
it was consequently decided that Mikhail Bakhtin be denied his higher doctorate.

Question: What did he do after being denied?
Self-contained rewrite: What did Mikhail Bakhtin do after being denied his higher doctorate?