Huppert’s conjecture for
Hurwitz equivalence in dihedral groups.
Hurwitz equivalence in tuples of dihedral groups, dicyclic groups, and semidihedral groups.
Hurwitz equivalence in tuples of generalized quaternion groups and dihedral groups.
Hyper BCI-algebras
We introduce the concept of a hyper BCI-algebra which is a generalization of a BCI-algebra, and investigate some related properties. Moreover we introduce a hyper BCI-ideal, weak hyper BCI-ideal, strong hyper BCI-ideal and reflexive hyper BCI-ideal in hyper BCI-algebras, and give some relations among these hyper BCI-ideals. Finally we discuss the relations between hyper BCI-algebras and hyper groups, and between hyper BCI-algebras and hyper -groups.
Hyper–(Abelian–by–finite) groups with many subgroups of finite depth
The main result of this note is that a finitely generated hyper-(Abelian-by-finite) group is finite-by-nilpotent if and only if every infinite subset contains two distinct elements , such that
Hyperarchimedische Teilbarkeitshalbgruppen
Hyperassociative varieties of semigroups.
Hyperbolic covering knots.
Hyperbolic geometry and moduli of real cubic surfaces
Let be the moduli space of smooth real cubic surfaces. We show that each of its components admits a real hyperbolic structure. More precisely, one can remove some lower-dimensional geodesic subspaces from a real hyperbolic space and form the quotient by an arithmetic group to obtain an orbifold isomorphic to a component of the moduli space. There are five components. For each we describe the corresponding lattices in . We also derive several new and several old results on the topology of ....
Hyperbolic groups with low-dimensional boundary
Hyperbolic monodromy groups for the hypergeometric equation and Cartan involutions
We give a criterion which ensures that a group generated by Cartan involutions in the automorph group of a rational quadratic form of signature is “thin”, namely it is of infinite index in the latter. It is based on a graph defined on the integral Cartan root vectors, as well as Vinberg’s theory of hyperbolic reflection groups. The criterion is shown to be robust for showing that many hyperbolic hypergeometric groups for are thin.
Hyperbolicity of one-relator groups.
Hypergroupes Canoniques Values et Hypervalues-Hypergroupes Fortement et Superieurement Canoniques
Hypergroupes et groupes ordonnés
Hypergroupes opérant transitivement sur un ensemble
Hypergroups defined from a linear space
Hypergroups of type u on the right of size five. Part two
Hyperidentities and hypervarieties.
Hyperidentities of groups and semigroups.