Results 81 to 90 of about 24,212 (190)
Modeling General Asymptotic Calabi–Yau Periods
Fortschritte der Physik, Volume 73, Issue 7, July 2025.Abstract In the quest to uncovering the fundamental structures that underlie some of the asymptotic Swampland conjectures the authors initiate the general study of asymptotic period vectors of Calabi–Yau manifolds. The strategy is to exploit the constraints imposed by completeness, symmetry, and positivity, which are formalized in asymptotic Hodge ...
Brice Bastian +2 more
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Complete classification of homogeneous structures on Lorentzian direct extensions of the Heisenberg group [PDF]
ریاضی و جامعهThe Heisenberg Lie group is one of the most famous and important Lie groups among the family of three dimensional Lie groups. The direct extension of this group to the fourth dimension was taken into consideration in the study of the nilpotent Lie ...
Amirhesam Zaeim +2 more
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Spectra of subrings of cohomology generated by characteristic classes for fusion systems
Bulletin of the London Mathematical Society, Volume 57, Issue 7, Page 1990-2005, July 2025.Abstract If F$\mathcal {F}$ is a saturated fusion system on a finite p$p$‐group S$S$, we define the Chern subring Ch(F)${\operatorname{Ch}}(\mathcal {F})$ of F$\mathcal {F}$ to be the subring of H∗(S;Fp)$H^*(S;{\mathbb {F}}_p)$ generated by Chern classes of F$\mathcal {F}$‐stable representations of S$S$. We show that Ch(F)${\operatorname{Ch}}(\mathcal {
Ian J. Leary, Jason Semeraro
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Intrinsic regular surfaces in Carnot groups
Bruno Pini Mathematical Analysis SeminarA Carnot group $G$ is a simply connected, nilpotent Lie group with stratified Lie algebra. Intrinsic regular surfaces in Carnot groups play the same role as C1 surfaces in Euclidean spaces.
Daniela Di Donato
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Representations of nilpotent locally compact groups
Journal of Functional Analysis, 1979 Abstract The main result of this paper is that if all the σ-representations of a separable locally compact nilpotent group are type I, then all the irreducible σ-representations are (up to equivalence) induced from one-dimensional σ-representations. This generalizes a result of Kirillov for simply connected nilpotent Lie groups.
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Commuting homogeneous locally nilpotent derivations [PDF]
Sbornik: Mathematics, 2019 Abstract Let be an affine algebraic variety endowed with an action of complexity one of an algebraic torus
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Locally nilpotent derivations on affine surfaces with a $\C^*$-action
, 2004 We give a classification of normal affine surfaces admitting an algebraic group action with an open orbit. In particular an explicit algebraic description of the affine coordinate rings and the defining equations of such varieties is given.
Flenner, Hubert, Zaidenberg, Mikhail
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Group Rings Satisfying Generalized Engel Conditions
پژوهشهای ریاضی, 2020 Let R be a commutative ring with unity of characteristic r≥0 and G be a locally finite group. For each x and y in the group ring RG define [x,y]=xy-yx and inductively via [x ,_( n+1) y]=[[x ,_( n) y] , y].
Mojtaba Ramezan-Nassab
doaj
Surface measure on, and the local geometry of, sub-Riemannian manifolds. [PDF]
Calc Var Partial Differ Equ, 2023 Don S, Magnani V.
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Centralizers of locally nilpotent derivations
Journal of Pure and Applied Algebra, 1997 A \(G_a\)-action on the polynomial ring \(\mathbb C[x_1, \ldots, x_n]\) is called triangulable in case there is a coordinate system \(\{u_1, \ldots, u_n\}\) such that the group action has the form \(\sigma_t(u_1) = u_1, \sigma_t(u_i) = u_i + Q_i\) with \(Q_i \in \mathbb C[u_1, \ldots, u_{i-1}]\) for \(i > 1.\) One consequence of the Jung-van der Kulk ...
Finston, David R., Walcher, Sebastian
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