2000 character limit reached
Pebble Games, Proof Complexity, and Time-Space Trade-offs (1307.3913v3)
Published 15 Jul 2013 in cs.CC, cs.DM, cs.LO, math.CO, and math.LO
Abstract: Pebble games were extensively studied in the 1970s and 1980s in a number of different contexts. The last decade has seen a revival of interest in pebble games coming from the field of proof complexity. Pebbling has proven to be a useful tool for studying resolution-based proof systems when comparing the strength of different subsystems, showing bounds on proof space, and establishing size-space trade-offs. This is a survey of research in proof complexity drawing on results and tools from pebbling, with a focus on proof space lower bounds and trade-offs between proof size and proof space.