On chief factors of parabolic maximal subgroups of the group 2F4(22n+1)

This study continues the author's previous papers where a refined description of the chief factors of a parabolic maximal subgroup contained in its unipotent radical was obtained for all (normal and twisted) finite simple groups of Lie type except for the groups F-2(4)(2(2n+1)) and B-l(2(n)). In present paper, such a description is given the group F-2(4)(2(2n+1)). We prove a theorem in which, for every parabolic maximal subgroup of F-2(4)((22n+ 1)), a fragment of the chief series contained in the unipotent radical of this subgroup is given. Generators of the corresponding chief factors are presented in a table.