Results 71 to 80 of about 75,128 (199)

Residually rationally solvable one‐relator groups

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract We show that the intersection of the rational derived series of a one‐relator group is rationally perfect and is normally generated by a single element. As a corollary, we characterise precisely when a one‐relator group is residually rationally solvable.
Marco Linton
wiley   +1 more source

Torsion classes of extended Dynkin quivers over commutative rings

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract For a Noetherian R$R$‐algebra Λ$\Lambda$, there is a canonical inclusion torsΛ→∏p∈SpecRtors(κ(p)Λ)$\mathop {\mathsf {tors}}\Lambda \rightarrow \prod _{\mathfrak {p}\in \operatorname{Spec}R}\mathop {\mathsf {tors}}(\kappa (\mathfrak {p})\Lambda)$, and each element in the image satisfies a certain compatibility condition.
Osamu Iyama, Yuta Kimura
wiley   +1 more source

Left-ordered inp-minimal groups

open access: yes, 2017
We prove that any left-ordered inp-minimal group is abelian, and we provide an example of a non-abelian left-ordered group of dp-rank ...
Dobrowolski, Jan, Goodrick, John
core  

Magnons and spikes for N $$ \mathcal{N} $$ = 2 linear quivers and their non-Abelian T-duals

open access: yesJournal of High Energy Physics
We compute the spectra associated with various semiclassical string states that propagate over N $$ \mathcal{N} $$ = 2 Gaiotto-Maldacena backgrounds. As an interesting special case, for the Abelian T- dual solution, we discover giant magnon and single ...
Dibakar Roychowdhury
doaj   +1 more source

Quasirandom and quasisimple groups

open access: yesDiscrete Analysis
Quasirandom and quasisimple groups, Discrete Analysis 2025:21, 24 pp. A quasirandom family of groups is a sequence of finite groups $(G_n)$ such that the smallest dimension of a non-trivial irreducible representation of $G_n$ tends to infinity with $n$.
Marco Barbieri, Luca Sabatini
doaj   +1 more source

Bohr sets in sumsets I: Compact abelian groups

open access: yesDiscrete Analysis
Bohr sets in sumsets I: Compact abelian groups, Discrete Analysis 2025:11, 37 pp. Since Bogolyubov’s 1939 result concerning Bohr structure inside sets of the form $A+A−A−A$, much has been written about how “smooth” sumsets are, where smoothness is ...
Anh N Le, Thái Hoàng Lê
doaj   +1 more source

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