Fourth Janko Group, The communicate to inspire Author(s): Van de Graaff

Author(s): Van de Graaff

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Fourth Janko Group, The communicate to inspire Author(s): Van de GraaffThis text illustrates how different methods of finite group theory including representation theory, cohomology theory, combinatorial group theory and local analysis are combined to construct one of the last of the sporadic finite simple groups the fourth Janko group J 4. Aimed at graduates and researchers in group theory, geometry and algebra, Ivanov's approach is based on analysis of group amalgams and the geometry of the complexes of these amalgams