Gravitational field equations and the possibility of time variation of all masses

Gravitational fields, spinor fields, and groups of motions

Green index in semigroups: generators, presentations and automatic structures

Gröbner bases for p-group algebras

Gröbner-Shirshov bases for braid groups in Adyan-Thurston generators

Grobner-Shirshov Basis for affine Weyl Group $\widetilde{A_n}$

Groebner-Shirshov bases for Schreier extensions of groups

Groebner-Shirshov bases for some one-relator groups

Groebner-Shirshov basis for HNN extensions of groups and for the alternating group

Groebner-Shirshov basis for the braid group in the Artin-Garside generators

Groebner-Shirshov basis for the braid group in the Birman-Ko-Lee-Garside generators

Groebner-Shirshov basis for the braid semigroup

Groebner-Shirshov Basis for the Chinese Monoid

Groebner-Shirshov besis for a free inverse semigroup

Gromov Conjecture on Surface Subgroups: Computational Experiments

Ground subgroups

Group actions and Helly's theorem

Group Actions on CAT(0) Simplicial Complexes

Group actions on median spaces

Group Actions on Real Cubings and Limit Groups over Partially Commutative Groups