Subgroups of Finite Index of Fuchsian Groups.
Subgroups of free idempotent generated regular semigroups.
Subgroups of Infinite Index in Fuchsian Groups.
Subgroups of locally normal groups
Subgroups of odd depth—a necessary condition
This paper gives necessary and sufficient conditions for subgroups with trivial core to be of odd depth. We show that a subgroup with trivial core is an odd depth subgroup if and only if certain induced modules from it are faithful. Algebraically this gives a combinatorial condition that has to be satisfied by the subgroups with trivial core in order to be subgroups of a given odd depth. The condition can be expressed as a certain matrix with -entries to have maximal rank. The entries of the matrix...
Subgroups of quasi-HNN groups.
Subgroups of small cancellation groups.
Subgroups of split orthogonal groups. II.
Subgroups of the (2,3,7) Triangle Group.
Subgroups of the Baer–Specker group with few endomorphisms but large dual
Assuming the continuum hypothesis, we construct a pure subgroup G of the Baer-Specker group with the following properties. Every endomorphism of G differs from a scalar multiplication by an endomorphism of finite rank. Yet G has uncountably many homomorphisms to ℤ.
Subgroups of the basic subgroup in a modular group ring
Subgroups of the Chevalley groups of type arising from a polar space.
Subgroups of the Clifford group.
Subgroups of the group Zn and a generalization of the Golab-Schinzel functional equation.
Subgroups of the modular group defined by a single linear congruence
Subgroups of the modular group generated by parabolic elements of constant amplitude
Subgroups of the orthogonal groups of even degree over a local field.
Subgroups with projective abelianization and trivial multiplicator.
Subloops of sedenions
This note investigates sedenion multiplication from the standpoint of loop theory. New two-sided loops are obtained within the version of the sedenions introduced by the second author. Conditions are given for the satisfaction of standard loop-theoretical identities within these loops.
Submodular Subgroups in Finite Groups.