Results 81 to 90 of about 53,696 (220)

Analysis on nilpotent groups

open access: yesJournal of Functional Analysis, 1986
Soit G un groupe de Lie nilpotent reel simplement connexe et soit L son algebre de Lie. Soient L 1 =L et L k+1 =[L k ,L], (k=1,2,...). Soit d=d(G)=d(L)=Σ k=1 ∞ kdim R (L k /L k+1 ). d est la dimension de Dirichlet de G. Soit H un groupe nilpotent discret finiment genere.
openaire   +2 more sources

Groups with triangle‐free graphs on p$p$‐regular classes

open access: yesMathematische Nachrichten, Volume 298, Issue 6, Page 1796-1807, June 2025.
Abstract Let p$p$ be a prime. In this paper, we classify the p$p$‐structure of those finite p$p$‐separable groups such that, given any three non‐central conjugacy classes of p$p$‐regular elements, two of them necessarily have coprime lengths.
M. J. Felipe   +2 more
wiley   +1 more source

Monogenic Functions and Representations of Nilpotent Lie Groups in Quantum Mechanics

open access: yes, 1998
We describe several different representations of nilpotent step two Lie groups in spaces of monogenic Clifford valued functions. We are inspired by the classic representation of the Heisenberg group in the Segal-Bargmann space of holomorphic functions ...
Cnops, Jan, Kisil, Vladimir
core   +1 more source

Limits of saturated ideals

open access: yesJournal of the London Mathematical Society, Volume 111, Issue 6, June 2025.
Abstract We investigate the question of when a given homogeneous ideal is a limit of saturated ones. We provide cohomological necessary criteria for this to hold and apply them to a range of examples. In small cases, we characterise the limits. We also supply a number of auxiliary results on the classical and multigraded Hilbert schemes, for example ...
Joachim Jelisiejew, Tomasz Mańdziuk
wiley   +1 more source

Some relations between Hodge numbers and invariant complex structures on compact nilmanifolds

open access: yesComplex Manifolds, 2017
Let N be a simply connected real nilpotent Lie group, n its Lie algebra, and € a lattice in N. If a left-invariant complex structure on N is Γ-rational, then HƏ̄s,t(Γ/N) ≃ HƏ̄s,t(nC) for each s; t.
Yamada Takumi
doaj   +1 more source

Nilpotency and Theory of L-Subgroups of an L-Group

open access: yesFuzzy Information and Engineering, 2014
In this paper, the notion of commutator is modified and extended to L-setting. Also, the notion of descending central series is introduced which is used to formulate the important notion of nilpotent L-subgroup of an L-group.
Naseem Ajmal, Iffat Jahan
doaj   +1 more source

On sub-class sizes of mutually permutable products

open access: yesOpen Mathematics, 2021
In this paper, we investigate the influence of sub-class sizes on a mutually permutable factorized group in which the sub-class sizes of some elements of its factors have certain quantitative properties. Some criteria for a group to be pp-nilpotent or pp-
Li Jinbao, Yang Yong
doaj   +1 more source

Actions of nilpotent groups on nilpotent groups

open access: yesGlasgow Mathematical Journal
AbstractFor finite nilpotent groups $J$ and $N$ , suppose $J$ acts on $N$ via automorphisms. We exhibit a decomposition of the first cohomology set in terms of the first cohomologies of the Sylow $p$ -subgroups of $J$ that mirrors the primary decomposition of $H^1(J,N)$ for abelian $N$ .
openaire   +3 more sources

A Jordan–Chevalley decomposition beyond algebraic groups

open access: yesJournal of the London Mathematical Society, Volume 111, Issue 6, June 2025.
Abstract We prove a decomposition of definable groups in o‐minimal structures generalizing the Jordan–Chevalley decomposition of linear algebraic groups. It follows that any definable linear group G$G$ is a semidirect product of its maximal normal definable torsion‐free subgroup N(G)$\mathcal {N}(G)$ and a definable subgroup P$P$, unique up to ...
Annalisa Conversano
wiley   +1 more source

DISTORTION IN FREE NILPOTENT GROUPS [PDF]

open access: yesInternational Journal of Algebra and Computation, 2010
We prove that a subgroup of a finitely generated free nilpotent group F is undistorted if and only if it is a retract of a subgroup of finite index in F.
openaire   +3 more sources

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