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Stack-number is not bounded by queue-number (2011.04195v2)

Published 9 Nov 2020 in math.CO and cs.DM

Abstract: We describe a family of graphs with queue-number at most 4 but unbounded stack-number. This resolves open problems of Heath, Leighton and Rosenberg (1992) and Blankenship and Oporowski (1999).

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