Stop the war!
Остановите войну!
for scientists:
default search action
"Bounded query classes and the difference hierarchy."
Richard Beigel, William I. Gasarch, Louise Hay (1989)
- Richard Beigel, William I. Gasarch, Louise Hay:
Bounded query classes and the difference hierarchy. Arch. Math. Log. 29(2): 69-84 (1989)
manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.