A homomorphism theorem for finite graphs

Michael Aschbacher
1976 Proceedings of the American Mathematical Society  
A homomorphism theorem for finite graphs is established and several group theoretical applications are derived. The proof is taken from a lemma of B. Fischer in his paper classifying groups generated by 3transpositions.
doi:10.1090/s0002-9939-1976-0505776-7 fatcat:qlequqcdd5a5tiwxlkzqud3uve