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Abstract
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We show that if
is a
primitive subgroup of
that is not large base, then any irredundant base for
has size at
most
. This
is the first logarithmic bound on the size of an irredundant base for such groups, and it is
the best possible up to a multiplicative constant. As a corollary, the relational complexity
of
is at
most
,
and the maximal size of a minimal base and the height are both at most
. Furthermore, we
deduce that a base for
of size at most
can be computed in polynomial time.
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Keywords
permutation group, base size, relational complexity,
computational complexity
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Mathematical Subject Classification
Primary: 20B15, 20B25, 20E32, 20-08
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Milestones
Received: 29 July 2021
Revised: 15 November 2021
Accepted: 25 December 2021
Published: 1 August 2022
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