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1.117  Articles
1 of 113 pages  |  10  records  |  more records»
It is proved that a group G has ?nitely many normalizers of non-subnormal subgroups if and only if each subgroup of G either is subnormal or has ?nitely many conjugates; groups with this latter property have been completely described in [8]. Moreover, gro... see more

We prove that in the class of almost locally normal groups the property of locally conjugation of any two Sylow pp-subgroups is not inherited by normal dividers of a finite index. The separates cases are explored, in which such property is inherited by su... see more

A subgroup HH is called a pronormal subgroup in a group GG if for any g?Gg \in G subgroups HH and HgH^g are conjugated in <H,Hg>{}. A subgroup HH is called a contranormal subgroup in a group GG if HG=GH^G = G. A subgroup HH is called a weak pronorma... see more

Subgroups HH and KK permute in GG if HK=KHHK = KH. Subgroup HH of GG is permutable if it permutes with every subgroup of GG. We obtain some inequalities for the probability that any subgroup of GG is permutable.

A subgroup HH of a group GG is said to be abnormal in GG if, for each element g?Gg \in G, we have g?<H,Hg>g \in {}. A subgroup HH of a group GG is said to be pronormal in GG if, for each element g?Gg \in G, the subgroups HH and HgH^g are conjugate i... see more

Non-periodic groups without free Abelian subgroups of rank 2 with non-Dedekind norm of Abelian noncyclic subgroups are studied.

By using the following theoretical and computational algorithms , we determined the solvable subgroups of large order of the finite non-abelian simple linear groups G = L2(p) = PSL(2,p) , for p≥5 and p is a prime number , also their presentations and pe... see more

Se estudia el nivel y estructura de la fecundidaden la provincia Santiago de Cuba, se profundizaen los grupos de mujeres en edad reproductiva,estableciendo para ello subgrupos de edades alinterior de los mismos; a la par se particulariza enlas edades simp... see more

Some properties of L-subgroups of finite groups are considered. Sets of L-subgroups of cyclic groups of an order pnp^n, where p is a prime number, of an order pq, where p, q are prime numbers, of quasicyclic group of p8p^{\infty} type, of uncyclic group o... see more

1 of 113 pages  |  10  records  |  more records»