84862
He co-founded two new branches of mathematics - KAM theory , and topological Galois theory ( this , with his student Askold Khovanskii ) .
 Galois, Askold Khovanskii
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Galois, Askold Khovanskii