136796
In mathematics , perfectoid objects occur in the study of problems of " mixed characteristic " , such as local field s of characteristic zero which have residue field s of characteristic prime p. The notion was introduced by Peter Scholze .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None