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Non-free points for groups generated by a pair of 2x2 matrices
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A note on torsion groups generated by pairs of 2x2 rational parabolic matrices
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The crystallographic restriction, permutations, and Goldbach's Conjecture
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Finite permutation groups with a transitive minimal normal subgroup
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Symplectic spreads
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Totally Goldbach numbers and related conjectures
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Bounds and quotient actions of innately transitive groups
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Tight sets and m-ovoids of generalised quadrangles
- Transitive decompositions of graph products: rank 3 product action type
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Transitive eggs
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Tight sets and m-ovoids of finite polar spaces
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Overgroups of cyclic Sylow subgroups of linear groups
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A construction of one-dimensional affine flag-transitive linear spaces
On this page, you can find PDF versions of old preprints (warning: there may be errors in these old drafts).