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On a Speculated Relation Between Chvátal–Sankoff Constants of Several Sequences
Published online by Cambridge University Press: 01 July 2009
Abstract
It is well known that, when normalized by n, the expected length of a longest common subsequence of d sequences of length n over an alphabet of size σ converges to a constant γσ,d. We disprove a speculation by Steele regarding a possible relation between γ2,d and γ2,2. In order to do that we also obtain some new lower bounds for γσ,d, when both σ and d are small integers.
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- Copyright © Cambridge University Press 2009
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