A method of matrix analysis of group structure

@article{Luce1949AMO,
  title={A method of matrix analysis of group structure},
  author={Duncan Luce and Albert D. Perry},
  journal={Psychometrika},
  year={1949},
  volume={14},
  pages={95-116},
  url={https://api.semanticscholar.org/CorpusID:16186758}
}
This paper describes a matrix method, n-chain and clique, which has simple relationships to the powers of certain matrices and applies it to the analysis of practical examples of group structure.
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One Reference

Connectivity and generalized cliques in sociometric group structure

A generalized concept of clique, called ann-clique, is introduced and n-cliques are shown to have a very close relationship to the existence of cliques in an artificial structure defined on the same set of elements, thus permitting the determination ofn-Cliques by means of the same simple matrix procedures used to obtain the clique structures.