Sporadic Homogeneous Structures

  title={Sporadic Homogeneous Structures},
  author={Gregory L. Cherlin},
We discuss Lachlan’s classification theory for finite homogeneous structures and related problems on finite permutation groups. Lachlan’s theory provides a hierarchy of classifications in which structures which are “sporadic” in one context reappear as members of infinite families at later stages. Every finite structure is accounted for at some level in this hierarchy, but for structures associated with familiar primitive permutation groups the combinatorial problem of locating that level… CONTINUE READING

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