Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435413
Title: Symmetric generation : permutation images and irreducible monomial representations
Author: Whyte, Sophie.
Awarding Body: University of Birmingham
Current Institution: University of Birmingham
Date of Award: 2006
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Abstract:
Symmetric generation has provided concise ways of constructing many classical and sporadic groups, in fact every non-abelian finite simple groups arises in this manner. A symmetric presentation for a group is a homomorphism from a progenitor, p*m : N. onto the group. We give details of our program which constructs all permutation images of a given progenitor. In a monomial progenitor, p*m :m N, the control subgroup N has a monomial action on the symmetric generators of order p > 3. We study monomial progenitors in which the control subgroup has an irreducible monomial representation, as several such progenitors have beell found to map onto sporadic groups. We classify all irreducible monomial representations of the alternating, symmetric and sporadic groups and their covering groups. We use the irreducible monomial representations of the covers of the alternating groups to construct monomial progenitors and we obtain sporadic images of several of these progenitors.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.435413  DOI: Not available
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