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First-line infertility treatment in normal or subnormal sperm: Interest of a simplified pre-IMSI test. [PDF]

open access: yesPLoS ONE
BackgroundIn the field of male infertility, when sperm is normal/subnormal, a few "add-on" routine tests can complete the basic semen examination.ObjectivesThe aim of this study was to develop and evaluate a faster, simplified motile sperm organelle ...
Julien Sigala   +6 more
doaj   +2 more sources

Groups Satisfying the Double Chain Condition on Subnormal Non-Normal Subgroups [PDF]

open access: yesAdvances in Group Theory and Applications, 2022
If θ is a subgroup property, a group G is said to satisfy the double chain condition on θ-subgroups if it admits no infinite double sequences consisting of θ-subgroups.
Mattia Brescia, Francesco de Giovanni
doaj   +1 more source

On Groups whose Subnormal Abelian Subgroups are Normal [PDF]

open access: yesAdvances in Group Theory and Applications, 2022
In the current paper we study the groups, whose subnormal abelian subgroups are normal. We obtained a quite detailed description of such hyperabelian groups with a periodic Baer radical.
L.A. Kurdachenko   +2 more
doaj   +1 more source

On Generalized σ-Subnormal Subgroups of Finite Groups [PDF]

open access: yesAdvances in Group Theory and Applications, 2023
Let σ = {σi | i ∈ I} be some partition of the set of all primes P, G a finite group and σ(G) = {σi | σi ∩ π(G) ≠ ∅}. A subgroup A of G is said to be generalized σ-subnormal in G if A = ⟨L, T⟩, where L is a modular subgroup and T is a σ-subnormal subgroup
Muhammad Tanveer Hussain
doaj   +1 more source

A study on the structure of finite groups with $c$-subnormal subgroups [PDF]

open access: yesInternational Journal of Group Theory, 2023
In this paper, we use the definition of the concept ``c-Subnormal Subgroup" to study the structure of a given finite group $G$ which contains some $c-$subnormal subgroups. We prove two main theorems, which answer the question of what conditions must hold
Jehad Al Jaraden, Dana Jaraden
doaj   +1 more source

Groups with Subnormal Deviation

open access: yesMathematics, 2023
The structure of groups which are rich in subnormal subgroups has been investigated by several authors. Here, we prove that if a periodic soluble group G has subnormal deviation, which means that the set of its non-subnormal subgroups satisfies a very ...
Francesco de Giovanni   +2 more
doaj   +1 more source

On groups in which subnormal subgroups of infinite rank are commensurable‎ ‎with some normal subgroup [PDF]

open access: yesInternational Journal of Group Theory, 2022
We study soluble groups $G$ in which each subnormal subgroup $H$ with infinite rank is‎ ‎commensurable with a normal subgroup‎, ‎i.e‎. ‎there‎ ‎exists a normal subgroup $N$ such that $H\cap N$ has finite index‎ ‎in both $H$ and $N$‎.
Ulderico Dardano, Fausto De Mari
doaj   +1 more source

On the Supersoluble Residual of a Product of Supersoluble Subgroups [PDF]

open access: yesAdvances in Group Theory and Applications, 2020
Let P be the set of all primes. A subgroup H of a group G is called P-subnormal in G, if either H = G, or there exists a chain of subgroups H = H_0 \leq H_1 \leq ... \leq H_n = G, with |H_i : H_{i-1}| \in P for all i.
Victor S. Monakhov   +1 more
doaj   +1 more source

A note on locally soluble almost subnormal subgroups in divsion rings [PDF]

open access: yesInternational Journal of Group Theory, 2021
Let $D$ be a division ring with center $F$ and assume that $N$ is a locally soluble almost subnormal subgroup of the multiplicative group $D^*$ of $D$‎. ‎We prove that if $N$ is algebraic over $F$‎, ‎then $N$ is central‎.
Truong Huu Dung
doaj   +1 more source

Finite Groups with Partially σ-Subnormal Subgroups in Short Maximal Chains [PDF]

open access: yesAdvances in Group Theory and Applications, 2021
Throughout this paper, all groups are finite and G always denotes a finite group. Let sigma be a partition of the set of all primes. The group G is said to be sigma-primary if G is a sigma_i-group for some sigma_i, and sigma-soluble if every chief factor
Viktoria S. Zakrevskaya
doaj   +1 more source

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