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This paper introduces and studies a particular subclass of the class of commutative rings with finite Gorenstein global dimension.

Commutative Algebra · Mathematics 2011-07-05 M. Tamekkante , M. Chhiti , K. Louartiti

We define a class of Riemannian and pseudo-Riemannian 2-step nilpotent Lie groups with nondegenerate centers that generalize the H-type groups of Kaplan. Examples are given and geometric properties are investigated.

Differential Geometry · Mathematics 2021-08-05 Justin M. Ryan

It is known that any torsion element in a lambda-ring is nilpotent. In this note we deduce a sharp estimate for the nilpotence degree of such an element.

Commutative Algebra · Mathematics 2010-04-07 F. J. -B. J. Clauwens

In this paper, we compute the Clebsch-Gordan formulae and the Green rings of connected pointed tensor categories of finite type.

Quantum Algebra · Mathematics 2014-05-19 Hua-Lin Huang , Fred Van Oystaeyen , Yuping Yang , Yinhuo Zhang

This paper introduces and studies a particular subclasses of the class of commutative rings with finite Gorenstein global (resp., weak) dimensions.

Commutative Algebra · Mathematics 2009-10-09 Najib Mahdou , Mohamed Tamekkante

We describe algorithms for computing the induced nilpotent orbits in semisimple Lie algebras. We use them to obtain the induction tables for the Lie algebras of exceptional type. This also yields the classification of the rigid nilpotent…

Representation Theory · Mathematics 2009-07-09 W. A. de Graaf , A. G. Elashvili

We will give another definition of Euler class group of a Noetherian ring.

Commutative Algebra · Mathematics 2014-08-13 Manoj K Keshari , Satya Mandal

Assume G is a nilpotent group of class > 3 in which every proper subgroup has class at most 3. In this note, we give the exact upper bound of class of G.

Group Theory · Mathematics 2023-07-25 Jixia Gao , Haipeng Qu

This paper explores the properties of multiplicative Lie algebra structures on a nilpotent group of class $2$. We also present a method for determining a multiplicative Lie algebra structure on a group that serves as an extension of one Lie…

Group Theory · Mathematics 2024-09-26 Deepak Pal , Amit Kumar , Sumit Kumar Upadhyay

We give an algorithm that decides whether a single equation in a group that is virtually a class $2$ nilpotent group with a virtually cyclic commutator subgroup, such as the Heisenberg group, admits a solution. This generalises the work of…

Group Theory · Mathematics 2023-06-22 Alex Levine

We study central extensions of nilpotent loops by elementary abelian $p$-groups using normalized cocycles. By introducing an affine automorphism group acting on the full cocycle space, we obtain a direct correspondence between affine orbits…

Group Theory · Mathematics 2026-02-23 Fariha Iftikhar , Gábor P. Nagy

In this paper, we establish the theory of nilpotent hypergroups and study some properties of nilpotent hypergroups and provided some structural characterizations of nilpotent hypergroups.

Group Theory · Mathematics 2023-10-31 Chi Zhang , Wenbin Guo

We give an example of a compact connected Lie group of the lowest rank such that the mod 2 cohomology ring of its classifying space has a nonzero nilpotent element.

Algebraic Topology · Mathematics 2026-01-13 Masaki Kameko

A group is called capable if it is a central factor group. We consider the capability of certain nilpotent products of cyclic groups, and obtain a generalisation of a theorem of Baer for the small class case. The approach may also be used…

Group Theory · Mathematics 2007-05-23 Arturo Magidin

We compute equivariant fundamental classes of orbits in GL(2)-representations. As applications, we find degrees of the orbit closures corresponding to elliptic fibrations and self-maps of the projective line.

Algebraic Geometry · Mathematics 2024-05-17 Anand Deopurkar

We prove that if $G$ is finite 2-generated $p$-group of nilpotence class at most 2 then the group algebra of $G$ with coefficients in the field with $p$ elements determines $G$ up to isomorphisms.

Group Theory · Mathematics 2020-04-07 Osnel Broche , Ángel del Río

We compute the characteristic varieties and the Alexander polynomial of a finitely generated nilpotent group. We show that the first characteristic variety may be used to detect nilpotence. We use the Alexander polynomial to deduce that the…

Algebraic Topology · Mathematics 2009-10-23 Anca Macinic , Stefan Papadima

We complete the determination of saturated fusion systems on maximal class 3-groups of rank two.

Group Theory · Mathematics 2019-01-24 Chris Parker , Jason Semeraro

In this paper we finish our classification of nilpotent symplectic alternating algebras of dimension 10 over any field F.

Rings and Algebras · Mathematics 2024-07-23 Layla Sorkatti , Gunnar Traustason

In 2004, Cs\"{o}rg\H{o} constructed a loop of nilpotency class three with abelian group of inner mappings. Until now, no other examples were known. We construct many such loops from groups of nilpotency class two by replacing the product…

Group Theory · Mathematics 2015-09-21 Aleš Drápal , Petr Vojtěchovský
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