Contributions to the theory of groups

Abstract

A 1. The influence on a finite group of its proper abnormal structure. J. London Math. Soc. 40 (1965). 348-61; MR30#4838. • B 2. Abnormal depth and hypereccentric length in finite soluble groups, Math. Z. 90 (1965). 29-40; MR32#141. • C 3. On a splitting theorem of Gaschiitz. Proc. Edinburgh Math. Soc. (20 15 (1966). 57-60; MR33#5708. • A 4. Finite groups with prescribed Sylow tower subgroups. Proc. London Math. Soc. (3) 16 (1966). 577-89; MR33#5734. • B 5. Remarks on system normalizers and Carter subgroups. Proc. Intemat. Conf. Theory of Groups (Canberra I965) (1967). 303-5. • B 6. Finite soluble groups with pronormal system normalizers. Proc. London Math. Soc. (3) 17 (1967). 447-69; MR35#2967. • C 7. A natural setting for the extensions of a group with trivial centre by an arbitrary group. Enseignement Math. 13 (1967). 167-73; MR3871179. • B 8. Nilpotent subgroups of finite soluble groups. Math. Z. 106 (1968). 97-112; MR40#5736. • B 9. Absolutely faithful group actions. Proc. Cambridge Philos. Soc. 66 (1969). 231-7; MR40#1465. • CIO. On the splitting of extensions by a group of prime order. Math. Z. 117 (1970). 239-48; MR43#356. • Cll. Splitting properties of group extensions. Proc. London Math. Soc. (3) 22 (1971). 1-23; MR43#7515. • C12. Extensions by a free abelian group of rank 2. Proc. Roy. Irish Acad. 71A (1971). 19-26. MR44#4097 • BI3. A subnormal embedding theorem for finite groups. J. London Math. Soc. (2) 5 (1972) 253-9; MR47#326. • C14. Universal finite group extensions and a non-splitting theorem. Israel J. Math. 15 (1973) 375-83. • A15. Sufficient conditions for the existence of ordered Sylow towers in finite groups. J. Algebra 28 (1974) 116-26. • Cl6. Automorphism groups of groups with trivial centre. Proc. London Math. Soc. • C17. Frattini normal subgroups of finite groups. unpublished. • A18. On finite insoluble groups with nilpotent maximal subgroups. unpublished

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