[HTML][HTML] The index of Lie poset algebras

VE Coll Jr, NW Mayers - Journal of Combinatorial Theory, Series A, 2021 - Elsevier
We provide general closed-form formulas for the index of type-A Lie poset algebras
corresponding to posets of restricted height. Furthermore, we provide a combinatorial recipe …

The index and spectrum of Lie poset algebras of type B, C, and D

VE Coll Jr, NW Mayers - arXiv preprint arXiv:2001.11006, 2020 - arxiv.org
In this paper, we define posets of types B, C, and D. These posets encode the matrix forms of
certain Lie algebras which lie between the algebras of upper-triangular and diagonal …

Toral posets and the binary spectrum property

VE Coll Jr, NW Mayers - Journal of Algebraic Combinatorics, 2021 - Springer
We introduce a family of posets which generate Lie poset subalgebras of A n-1= sl (n)
whose index can be realized topologically. In particular, if P is such a toral poset, then it has …

The evolution of the spectrum of a Frobenius Lie algebra under deformation

VE Coll, N Mayers, N Russoniello - Communications in Algebra, 2022 - Taylor & Francis
Abstract The category of Frobenius Lie algebras is stable under deformation, and here we
examine explicit infinitesimal deformations of four and six dimensional Frobenius Lie …

The unbroken spectrum of Frobenius seaweeds II: type-B and type-C

A Cameron, VE Coll Jr, M Hyatt, C Magnant - arXiv preprint arXiv …, 2019 - arxiv.org
Analogous to the Type-$ A_ {n-1}=\mathfrak {sl}(n) $ case, we show that if $\mathfrak {g} $ is
a Frobenius seaweed subalgebra of $ B_ {n}=\mathfrak {so}(2n+ 1) $ or $ C_ {n}=\mathfrak …

[图书][B] Regular functionals on seaweed Lie algebras

AL Dougherty - 2019 - search.proquest.com
The index of a Lie algebra g is defined by ind g= min f∈ g* dim (ker (B f)), where f is an
element of the linear dual g* and B f (x, y)= f ([x, y]) is the associated skew-symmetric Kirillov …

The unbroken spectra of Frobenius seaweeds

A Cameron, VE Coll Jr, M Hyatt, C Magnan - arXiv preprint arXiv …, 2021 - arxiv.org
arXiv:2108.06019v1 [math.CO] 13 Aug 2021 Page 1 arXiv:2108.06019v1 [math.CO] 13 Aug
2021 The unbroken spectra of Frobenius seaweeds Alex Cameron∗, Vincent E. Coll, Jr.∗∗ …

Seaweed algebras and the unimodal spectrum property

N Mayers, N Russoniello - arXiv preprint arXiv:2306.10154, 2023 - arxiv.org
If $\mathfrak {g} $ is a Frobenius Lie algebra, then the spectrum of $\mathfrak {g} $ is an
algebraic invariant equal to the multiset of eigenvalues corresponding to a particular …

[PDF][PDF] The index of Lie poset algebras II-types B, C, and D

VE Coll Jr, NW Mayers - arXiv preprint arXiv:2001.11006, 2019 - researchgate.net
After the fashion of type-A Lie poset algebras studied by Coll and Gerstenhaber, we define
posets of types B, C, and D. These posets encode the matrix forms of certain Lie algebras …

The Index and Spectrum of Lie Poset Algebras

NW Mayers - 2020 - search.proquest.com
The index and spectrum of Lie poset algebras Page 1 The index and spectrum of Lie poset
algebras by Nicholas W. Mayers A Dissertation Presented to the Graduate Committee of Lehigh …