Classifying 2-groups by Coclass

  title={Classifying 2-groups by Coclass},
  author={Mark F. Newman and Elizabeth A. O’Brien},
Now that the conjectures of Leedham-Green and Newman have been proved, we probe deeper into the classification of p-groups using coclass. We determine the pro-2-groups of coclass at most 3 and use these to classify the 2-groups of coclass at most 3 into families. Using extensive computational evidence, we make some detailed conjectures about the structure of these families. We also conjecture that the 2-groups of arbitrary fixed coclass exhibit similar behaviour. 


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