Results 71 to 80 of about 116,152 (330)

Collineation groups of translation planes of small dimension

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1981
A subgroup of the linear translation complement of a translation plane is geometrically irreducible if it has no invariant lines or subplanes. A similar definition can be given for “geometrically primitive”.
T. G. Ostrom
doaj   +1 more source

On the permutability of Sylow subgroups with derived subgroups of B-subgroups

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2019
A finite non-nilpotent group G is called a B-group if every proper subgroup of the quotient group  G/Φ(G) is nilpotent. We establish the r-solvability of the group in which some Sylow r-subgroup permutes with the derived subgroups of 2-nilpotent (or 2 ...
Ekaterina V. Zubei
doaj   +1 more source

Jordan’s theorem for solvable groups [PDF]

open access: yesProceedings of the American Mathematical Society, 1970
We show that every finite solvable group of n × n n \times n matrices over the complex numbers has a normal abelian subgroup of index ≦ 2 4 n / 3 − 1
openaire   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

A note on the structure of a finite group G having a subgroup H maximal in 〈H, Hg〉

open access: yesOpen Mathematics, 2019
Let G be a finite group and H ≤ G. The authors study the structure of finite groups G having a subgroup H which is maximal in 〈H, Hg〉 for some g ∈ G. Some results on the structure of 〈H, Hg〉 and G are set up.
Xu Yong, Li Xianhua, Chen Guiyun
doaj   +1 more source

Intersections of conjugate solvable subgroups in classical groups of Lie type

open access: yes, 2017
In this paper we obtain a partial solution to Problem 17.41 from "Kourovka notebook": if $S$ is a solvable subgroup of a finite group $G$ with trivial solvable radical, do there exist five conjugate of $S$ with trivial intersection. We consider the case,
Baykalov, Anton
core  

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

On the Construction of Simply Connected Solvable Lie Groups

open access: yes, 2015
Let $\omega_\mathfrak{g}$ be a Lie algebra valued differential $1$-form on a manifold $M$ satisfying the structure equations $d \omega_\mathfrak{g} + \frac{1}{2} \omega_\mathfrak{g}\wedge \omega_\mathfrak{g}=0$ where $\mathfrak{g}$ is solvable.
Fels, Mark E.
core  

Solvable Groups and Loops

open access: yesJournal of Algebra, 1996
Let \(Q\) be a loop and \(M(Q)\) be its multiplication group, i.e. the subgroup of the symmetric group \(S_Q\) generated by all the left and right translations. And moreover, let us assume that there exists a series of subloops of the loop \(Q\) of the form \(1=Q_0\leq Q_1\leq\cdots\leq Q_n=Q\), where \(Q_i\) is a normal subloop in \(Q_{i-1}\) and ...
openaire   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

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