Fair omega-Regular Games
summary
Defines games where both players must use designated fair moves and gives a formal winning rule: if one player is fair and the other not the fair player wins, if both fair use α, if both unfair use β. Proves determinacy, gives a gadget-based polynomial reduction from fair parity/parity to ordinary parity (gadgets add priorities up to 2K+2 and yield linear blowup when β is trivial), and supplies a direct symbolic fixpoint algorithm and a memory encoding (two values per node) that yields quasi‑polynomial solvability.
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chapters (12)
- 0:00Fair omega-regular games intro
- 2:52Games in verification motivation
- 3:55Parity games as verification
- 8:03Solving standard parity games
- 8:24Fair parity games single-player
- 10:51Fair to standard parity reduction
- 14:40Fairness for both players
- 16:31Defining Fair Alpha-Beta games
- 17:33Fair Alpha-Beta subclasses
- 19:20Fair Alpha-Beta to parity reduction
- 20:49Framework summary
- 21:54Q&A
